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Joseph M. DiTomaso's Images

Title: Weed Specialist
Organization: University of California - Davis
Unit: Plant Sciences
Country: United States
Professional Societies:

1,862 Images of 618 Subjects View Subject List View Image Details View Thumbnails

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Image Subject Name Scientific Name Description
5386639 American black nightshade Solanum americanum flowering and fruiting stem.
5374579 common tansy Tanacetum vulgare senesced stems
5374768 shortpod mustard Hirschfeldia incana
5386214 littleseed canarygrass Phalaris minor floret with sterile bract at base.
5387348 Mexican lovegrass Eragrostis mexicana ssp. virescens spikelets.
5387365 tall fescue Festuca arundinacea spikelets.
5387403 cereal rye Secale cereale spikelets.
5387343 Lehmann lovegrass Eragrostis lehmanniana spikelets.
5387332 Mediterranean lovegrass Eragrostis barrelieri spikelets.
5387123 slender oat Avena barbata spikelets.
5387147 little quakinggrass Briza minor spikelets.
5387196 rattlesnake brome Bromus briziformis spikelets.
5387083 barb goatgrass Aegilops triuncialis spikelets.
5386225 smilograss Piptatherum miliaceum spikelets.
5375001 whiteedge flatsedge Cyperus flavicomus spikelet clusters
5374996 tall flatsedge Cyperus eragrostis spikelet clusters
5387471 early watergrass Echinochloa oryzoides spikelets on inflorescence branch.
5387528 reed canarygrass Phalaris arundinacea spikelets on inflorescence branches.
5387391 leporinum barley Hordeum murinum ssp. leporinum population.
5387188 weedy brome Bromus alopecuros Inflorescences of weedy brome (Bromus alopecuros) right and soft brome (Bromus hordeaceus) left.
5387030 fumitory Fumaria spp. fumitory(Fumaria officinalis) flowers and leaves left and fineleaf fumitory (Fumaria parviflora) flowers, fruit, and leaves right
5386872 slender false garlic Nothoscordum gracile bulb with new flowering shoot.
5387223 rhodesgrass Chloris gayana spikelets and florets.
5387467 late barnyard grass Echinochloa oryzicola spikelets on inflorescence branch.
5386772 Texas filaree Erodium texanum plant, a native nonweedy species.
5386621 coyote tobacco Nicotiana attenuata , a native nonweedy species very similar to manyflower tobacco, N. acuminata var. multiflora
5387570 water smartweed Polygonum amphibium var. stipulaceum in its native habitat in a pond. Leaves are floating unlike erect leaves of P. a. var. emersum
5387567 longroot smartweed Polygonum amphibium var. emersum in its native habitat in a pond.
5387560 California cordgrass Spartina foliosa in its native habitat in the San Francisco Bay.
5387512 knotgrass Paspalum distichum in native habitat along bank of stream.
5387487 seepwillow Baccharis salicifolia Male flower heads of seepwillow
5387488 seepwillow Baccharis salicifolia Female flower heads of seepwillow
5387486 seepwillow Baccharis salicifolia along a stream bed in its native habitat.
5387450 California loosestrife Lythrum californicum flowering stem, a native nonweedy plant along streamsides.
5387107 foxtail pricklegrass Crypsis alopecuroides collar and sheath.
5387102 swamp pricklegrass Crypsis schoenoides inflorescences.
5387105 foxtail pricklegrass Crypsis alopecuroides
5387106 foxtail pricklegrass Crypsis alopecuroides inflorescence.
5387033 white ramping fumitory Fumaria capreolata flowering stem.
5387101 swamp pricklegrass Crypsis schoenoides
5387031 drug fumitory Fumaria officinalis seedling.
5387029 drug fumitory Fumaria officinalis inflorescence.
5387028 drug fumitory Fumaria officinalis infestation in a garden.
5387627 cutleaf blackberry Rubus laciniatus
5387625 Himalaya blackberry Rubus armeniacus prickly and angled stem
5387626 cutleaf blackberry Rubus laciniatus
5387624 Himalaya blackberry Rubus armeniacus fruit and whitish color on back of leaflet
5387620 fiddleleaf dock Rumex pulcher inflorescence with fruit.
5387585 marshpepper smartweed Polygonum hydropiper node with ocrea.
5387562 California cordgrass Spartina foliosa collar and sheath.
5387543 Chilean rabbitsfoot grass Polypogon australis inflorescence
5387515 knotgrass Paspalum distichum collar and sheath.
5387472 early watergrass Echinochloa oryzoides collar and sheath, ligule lacking
5387468 late barnyard grass Echinochloa oryzicola collar and sheath, ligule lacking
5387462 rough barnyardgrass Echinochloa muricata collar and sheath.
5387446 hyssop loosestrife Lythrum hyssopifolium flowering stem.
5387396 leporinum barley Hordeum murinum ssp. leporinum collar and sheath.
5387354 southwestern cupgrass Eriochloa acuminata collar and sheath.
5387349 Mexican lovegrass Eragrostis mexicana ssp. virescens collar and sheath.
5387352 southwestern cupgrass Eriochloa acuminata inflorescence.
5387353 southwestern cupgrass Eriochloa acuminata spikelets.
5387333 Mediterranean lovegrass Eragrostis barrelieri gland at base of inflorescence branches
5387334 Mediterranean lovegrass Eragrostis barrelieri collar and sheath.
5387327 desert lovegrass Eragrostis pectinacea var. miserrima spikelets.
5387328 desert lovegrass Eragrostis pectinacea var. miserrima collar and sheath.
5387302 threespike goosegrass Eleusine tristachya collar and sheath.
5387221 Australian fingergrass Chloris truncata collar and sheath.
5387190 weedy brome Bromus alopecuros ligule and collar.
5387193 Australian chess Bromus arenarius collar and sheath.
5387185 field brome Bromus arvensis spikelets.
5387186 field brome Bromus arvensis collar and sheath.
5387184 field brome Bromus arvensis inflorescence.
5387040 buckhorn plantain Plantago coronopus plant. Note young reflexed inflorescence.
5387041 buckhorn plantain Plantago coronopus
5387042 buckhorn plantain Plantago coronopus flowering stem.
5386564 hairy purslane speedwell Veronica peregrina ssp. xalapensis flowering stem.
5386542 broadleaf glandweed Parentucellia latifolia flowering stem.
5386389 royal larkspur Delphinium variegatum ssp. variegatum flower and fruiting stem.
5386390 spinyfruit buttercup Ranunculus muricatus in turf.
5386217 hood canarygrass Phalaris paradoxa collar and sheath.
5374971 floating pennywort Hydrocotyle ranunculoides inflorescence
5387613 Kerner's dock Rumex kerneri
5387634 arroyo willow Salix lasiolepis with stipules and whitish color on back of leaves
5387632 red willow Salix laevigata male flower cluster.
5387633 red willow Salix laevigata female flower cluster
5387630 Goodding's willow Salix gooddingii with female flower clusters.
5387605 cluster dock Rumex conglomeratus flowering stem.
5387609 toothed dock Rumex dentatus flowering stem.
5387584 marshpepper smartweed Polygonum hydropiper inflorescence.
5387583 marshpepper smartweed Polygonum hydropiper flowering stem.
5386974 fringed willowherb Epilobium ciliatum ssp. watsonii flowering stem. J. M. DiTomaso
5386969 fringed willowherb Epilobium ciliatum ssp. ciliatum flowering stem.
5386970 fringed willowherb Epilobium ciliatum ssp. ciliatum flowering stem. Hairy form of the species.
5386965 panicle willowherb Epilobium brachycarpum flowers and fruit.
5386917 Cornish mallow Lavatera cretica flowering stem.
5386840 vinegarweed Trichostema lanceolatum flowering stem.
5386801 roundleaf geranium Geranium rotundifolium flowering stem.
5386779 dovefoot geranium Geranium molle flower and leaves.
5386780 dovefoot geranium Geranium molle flower and fruit.
5386778 dovefoot geranium Geranium molle flowering stem.
5386767 shortfruit stork's bill Erodium brachycarpum flower and fruit.
5386761 whitestem filaree Erodium moschatum leaf and fruiting stem.
5386751 broadleaf filaree Erodium botrys flowering and fruiting stem.
5386724 juniper mistletoe Phoradendron juniperinum
5386725 dense mistletoe Phoradendron densum on a juniper tree.
5386697 California nettle Urtica dioica ssp. gracilis flowering stem.
5386700 burning nettle Urtica urens flowering stem.
5386723 juniper mistletoe Phoradendron juniperinum on a juniper tree.
5386680 earleaf nightshade Solanum mauritianum
5386681 earleaf nightshade Solanum mauritianum flowering stem.
5386609 manyflower tobacco Nicotiana acuminata var. multiflora flowering stem.
5386618 Indian tobacco Nicotiana quadrivalvis flowering stem.
5386580 brightblue speedwell Veronica serpyllifolia ssp. humifusa fruiting stem.
5386579 brightblue speedwell Veronica serpyllifolia ssp. humifusa flowering stem.
5386572 germander speedwell Veronica chamaedrys flowering stem.
5386565 hairy purslane speedwell Veronica peregrina ssp. xalapensis fruiting stem.
5386557 purplestamen mullein Verbascum virgatum rosettes.
5387631 red willow Salix laevigata with male flower clusters.
5387619 fiddleleaf dock Rumex pulcher habit in a drier environment.
5387614 Kerner's dock Rumex kerneri basal rosette.
5387615 Kerner's dock Rumex kerneri immature fruiting clusters.
5387616 Kerner's dock Rumex kerneri mature fruiting cluster.
5387617 Kerner's dock Rumex kerneri
5387610 toothed dock Rumex dentatus fruit clusters.
5387611 toothed dock Rumex dentatus
5387606 cluster dock Rumex conglomeratus fruit cluster.
5387607 cluster dock Rumex conglomeratus
5387568 longroot smartweed Polygonum amphibium var. emersum flowering stem.
5387561 California cordgrass Spartina foliosa inflorescence.
5387513 knotgrass Paspalum distichum inflorescence.
5387514 knotgrass Paspalum distichum Creeping stem of knotgrass
5387473 early watergrass Echinochloa oryzoides
5387466 late barnyard grass Echinochloa oryzicola inflorescence.
5387463 rough barnyardgrass Echinochloa muricata
5387470 early watergrass Echinochloa oryzoides inflorescence.
5387461 rough barnyardgrass Echinochloa muricata inflorescence.
5387445 hyssop loosestrife Lythrum hyssopifolium near a rice field.
5387416 rigid ryegrass Lolium rigidum inflorescence.
5387437 apple mint Mentha suaveolens flowering stem.
5387394 smooth barley Hordeum murinum ssp. glaucum inflorescence.
5387347 Mexican lovegrass Eragrostis mexicana ssp. virescens inflorescence.
5387331 Mediterranean lovegrass Eragrostis barrelieri inflorescence.
5387301 threespike goosegrass Eleusine tristachya inflorescences.
5387326 desert lovegrass Eragrostis pectinacea var. miserrima inflorescences.
5387145 little quakinggrass Briza minor
5387146 little quakinggrass Briza minor inflorescence.
5387220 Australian fingergrass Chloris truncata inflorescences.
5387261 crested dogtailgrass Cynosurus cristatus inflorescence.
5387192 Australian chess Bromus arenarius inflorescence.
5387189 weedy brome Bromus alopecuros inflorescence at maturity.
5374969 floating pennywort Hydrocotyle ranunculoides
5374970 floating pennywort Hydrocotyle ranunculoides
5386964 panicle willowherb Epilobium brachycarpum
5386912 high mallow Malva sylvestris flowering stem.
5386870 slender false garlic Nothoscordum gracile flowering stem.
5386862 white garlic Allium neapolitanum flowering stems.
5386854 three-cornered leek Allium triquetrum flowering stem.
5386821 spreading rush Juncus patens flowering stem.
5386752 broadleaf filaree Erodium botrys immature plant.
5386759 whitestem filaree Erodium moschatum rosette.
5386760 whitestem filaree Erodium moschatum
5386750 broadleaf filaree Erodium botrys
5386683 earleaf nightshade Solanum mauritianum leaf bases.
5386682 earleaf nightshade Solanum mauritianum fruiting stem.
5386578 brightblue speedwell Veronica serpyllifolia ssp. humifusa
5386563 hairy purslane speedwell Veronica peregrina ssp. xalapensis
5386558 purplestamen mullein Verbascum virgatum
5386556 purplestamen mullein Verbascum virgatum
5386536 purple toadflax Linaria purpurea
5386534 purple toadflax Linaria purpurea flowering stem.
5386386 red larkspur Delphinium nudicaule flowering stem.
5386387 San Bernardino larkspur Delphinium parryi flowering stem.
5386388 zigzag larkspur Delphinium patens flowering stem.
5386216 hood canarygrass Phalaris paradoxa inflorescence.
5386800 roundleaf geranium Geranium rotundifolium leaves and flower.
5386838 vinegarweed Trichostema lanceolatum population in a pasture.
5386791 New Zealand geranium Geranium retrorsum fruit after release of seeds.
5386619 Indian tobacco Nicotiana quadrivalvis
5386617 Indian tobacco Nicotiana quadrivalvis
5386610 manyflower tobacco Nicotiana acuminata var. multiflora
5386611 manyflower tobacco Nicotiana acuminata var. multiflora
5386608 manyflower tobacco Nicotiana acuminata var. multiflora
5386581 brightblue speedwell Veronica serpyllifolia ssp. humifusa
5387027 crimson woodsorrel Oxalis incarnata
5386968 fringed willowherb Epilobium ciliatum ssp. ciliatum
5386971 fringed willowherb Epilobium ciliatum ssp. ciliatum
5386972 fringed willowherb Epilobium ciliatum ssp. ciliatum
5386963 panicle willowherb Epilobium brachycarpum
5386914 high mallow Malva sylvestris
5386916 Cornish mallow Lavatera cretica
5386918 Cornish mallow Lavatera cretica
5386919 Cornish mallow Lavatera cretica fruit with bracts on back.
5386913 high mallow Malva sylvestris fruit from front and back.
5386911 high mallow Malva sylvestris
5386902 bull mallow Malva nicaeensis fruit from front and back.
5386903 bull mallow Malva nicaeensis
5386900 bull mallow Malva nicaeensis
5386901 bull mallow Malva nicaeensis
5386876 meadow deathcamas Zigadenus venenosus var. venenosus
5386877 meadow deathcamas Zigadenus venenosus var. venenosus flowering stem.
5386874 Fremont's deathcamas Zigadenus fremontii
5386875 Fremont's deathcamas Zigadenus fremontii
5386869 slender false garlic Nothoscordum gracile
5386871 slender false garlic Nothoscordum gracile
5386861 white garlic Allium neapolitanum
5386853 three-cornered leek Allium triquetrum
5386839 vinegarweed Trichostema lanceolatum
5386841 vinegarweed Trichostema lanceolatum
5386820 spreading rush Juncus patens
5386790 New Zealand geranium Geranium retrorsum leaves and flower.
5386818 Pacific rush Juncus effusus var. pacificus
5386788 New Zealand geranium Geranium retrorsum
5386789 New Zealand geranium Geranium retrorsum immature plant.
5386781 dovefoot geranium Geranium molle
5386770 shortfruit stork's bill Erodium brachycarpum
5386769 shortfruit stork's bill Erodium brachycarpum leaves on hairy stem.
5386768 shortfruit stork's bill Erodium brachycarpum fruit cluster.
5386765 shortfruit stork's bill Erodium brachycarpum mature plant.
5386766 shortfruit stork's bill Erodium brachycarpum immature plant in flower.
5386762 whitestem filaree Erodium moschatum
5386482 wall bedstraw Galium parisiense
5386491 Lamarck's bedstraw Galium divaricatum
5386497 yellow wall bedstraw Galium murale
5386532 Moroccan toadflax Linaria maroccana
5386695 stinging nettle Urtica dioica ssp. holosericea
5386701 burning nettle Urtica urens
5386188 knotgrass Paspalum distichum
5386393 spinyfruit buttercup Ranunculus muricatus
5386421 biddy-biddy Acaena novae-zelandiae
5386920 Cornish mallow Lavatera cretica
5387325 desert lovegrass Eragrostis pectinacea var. miserrima
5387330 Mediterranean lovegrass Eragrostis barrelieri
5387300 threespike goosegrass Eleusine tristachya
5387219 Australian fingergrass Chloris truncata
5387392 leporinum barley Hordeum murinum ssp. leporinum
5387351 southwestern cupgrass Eriochloa acuminata
5387346 Mexican lovegrass Eragrostis mexicana ssp. virescens
5386713 English violet Viola odorata
5386703 spreading pellitory Parietaria judaica
5386704 spreading pellitory Parietaria judaica
5386698 California nettle Urtica dioica ssp. gracilis
5386699 burning nettle Urtica urens
5386693 stinging nettle Urtica dioica ssp. holosericea flowering stem.
5386694 stinging nettle Urtica dioica ssp. holosericea stinging hairs.
5386692 stinging nettle Urtica dioica ssp. holosericea plants in a meadow.
5386554 purplestamen mullein Verbascum virgatum
5386555 purplestamen mullein Verbascum virgatum flowering stem.
5386535 purple toadflax Linaria purpurea
5386530 Moroccan toadflax Linaria maroccana pink-flowered form.
5386531 Moroccan toadflax Linaria maroccana white-flowered form.
5386529 Moroccan toadflax Linaria maroccana
5386495 yellow wall bedstraw Galium murale
5386496 yellow wall bedstraw Galium murale fruiting stem.
5386489 Lamarck's bedstraw Galium divaricatum
5386490 Lamarck's bedstraw Galium divaricatum fruiting stem.
5386494 yellow wall bedstraw Galium murale
5386488 Lamarck's bedstraw Galium divaricatum
5386480 wall bedstraw Galium parisiense flowering stem.
5386481 wall bedstraw Galium parisiense
5386479 wall bedstraw Galium parisiense
5386464 whitebark raspberry Rubus leucodermis
5386465 whitebark raspberry Rubus leucodermis fruit and leaves.
5386466 whitebark raspberry Rubus leucodermis
5386474 Pennsylvania blackberry Rubus pensilvanicus flowering stem.
5386419 biddy-biddy Acaena novae-zelandiae flower head.
5386391 spinyfruit buttercup Ranunculus muricatus
5386369 miner's lettuce Claytonia perfoliata rosette.
5386366 miner's lettuce Claytonia perfoliata
5386367 miner's lettuce Claytonia perfoliata foliage and flowers.
5386368 miner's lettuce Claytonia perfoliata
5386215 hood canarygrass Phalaris paradoxa
5387660 tall vervain Verbena bonariensis seedling.
5387662 seashore vervain Verbena montevidensis adjacent to irrigation canal.
5387663 seashore vervain Verbena montevidensis inflorescence.
5387664 seashore vervain Verbena montevidensis stem with opposite leaves tapered at base.
5387665 seashore vervain Verbena montevidensis seedling.
5387658 tall vervain Verbena bonariensis inflorescence.
5387659 tall vervain Verbena bonariensis stem with opposite leaves clasping stem at base.
5387655 tamarisk Tamarix spp. Foliage of athel tamarisk (Tamarix aphylla) on left, Tamarix ramosissima on right.
5387656 Athel tamarisk Tamarix aphylla flowers.
5387657 tall vervain Verbena bonariensis along irrigation canal.
5387651 saltcedar Tamarix ramosissima flowering branch.
5387652 saltcedar Tamarix ramosissima flowers.
5387653 saltcedar Tamarix ramosissima seedlings.
5387654 Athel tamarisk Tamarix aphylla along shoreline.
5387649 saltcedar Tamarix ramosissima new saplings along an intermittenly dry creekbed.
5387650 saltcedar Tamarix ramosissima in flower.
5387645 smallflower tamarisk Tamarix parviflora flowering branch.
5387646 smallflower tamarisk Tamarix parviflora resprouting from stem fragment.
5387639 water speedwell Veronica anagallis-aquatica in flower.
5387640 water speedwell Veronica anagallis-aquatica inflorescence.
5387641 water speedwell Veronica anagallis-aquatica seedlings.
5387643 American speedwell Veronica americana foliage and flowers.
5387644 smallflower tamarisk Tamarix parviflora in flower in riparian site.
5387636 coyote willow Salix exigua
5387637 weeping willow Salix babylonica leaves.
5387638 water speedwell Veronica anagallis-aquatica infestation in an irrigation ditch
5387635 weeping willow Salix babylonica drooping branches.
5387622 redmaids Calandrinia ciliata
5387629 coyote willow Salix exigua with female flower clusters.
5387593 dotted smartweed Persicaria punctata flowering stems.
5387600 broadleaf dock Rumex obtusifolius plant.
5387601 broadleaf dock Rumex obtusifolius leaf.
5387603 broadleaf dock Rumex obtusifolius seedling.
5387580 ladysthumb Persicaria maculosa node with ocrea.
5387587 Pennsylvania smartweed Polygonum pensylvanicum inflorescence.
5387588 Pennsylvania smartweed Polygonum pensylvanicum node with ocrea.
5387590 swamp smartweed Persicaria hydropiperoides at margin of irrigation canal.
5387591 swamp smartweed Persicaria hydropiperoides inflorescence.
5387571 pale smartweed Persicaria lapathifolia infestation in an irrigation canal.
5387572 pale smartweed Persicaria lapathifolia flowering stem.
5387577 ladysthumb Persicaria maculosa flowering stem.
5387579 ladysthumb Persicaria maculosa leaves and stem.
5387565 common cordgrass Spartina anglica collar and sheath.
5387566 common cordgrass Spartina anglica Newly emerging shoot of common cordgrass
5387363 tall fescue Festuca arundinacea plant.
5387364 tall fescue Festuca arundinacea inflorescence.
5387366 tall fescue Festuca arundinacea collar and sheath.
5387406 Italian ryegrass Festuca perennis plant.
5387207 field sandbur Cenchrus spinifex plant.
5387208 field sandbur Cenchrus spinifex inflorescence.
5387209 field sandbur Cenchrus spinifex collar and sheath.
5386670 silverleaf nightshade Solanum elaeagnifolium fruit.
5386708 moss vervain Glandularia pulchella plant.
5386709 moss vervain Glandularia pulchella flowering stem.
5386710 moss vervain Glandularia pulchella foliage.
5386975 fireweed Chamerion angustifolium flowering stem.
5386976 fireweed Chamerion angustifolium fruiting stem.
5387564 saltmeadow cordgrass Spartina patens collar and sheath.
5387557 denseflower cordgrass Spartina densiflora growing as a bunchgrass.
5387558 denseflower cordgrass Spartina densiflora inflorescence.
5387559 denseflower cordgrass Spartina densiflora collar and sheath.
5387556 denseflower cordgrass Spartina densiflora infestation
5387552 cordgrass Spartina spp. Hybrid between smooth cordgrass (Spartina alterniflora) and California cordgrass (Spartina foliosa)
5387553 smooth cordgrass Spartina alterniflora inflorescence.
5387554 smooth cordgrass Spartina alterniflora collar and sheath.
5387551 cordgrass Spartina spp. Spartina alterniflora (tall) growing with the native California cordgrass, Spartina foliosa (short)
5387547 water-bent Polypogon viridis inflorescence.
5387548 rabbitfoot polypogon Polypogon monspeliensis
5387535 rabbitfoot polypogon Polypogon monspeliensis inflorescence.
5387536 rabbitfoot polypogon Polypogon monspeliensis collar and sheath.
5387526 reed canarygrass Phalaris arundinacea in its native habitat along a river.
5387527 reed canarygrass Phalaris arundinacea inflorescence.
5387519 bahiagrass Paspalum notatum as a turf weed.
5387521 bulbous canarygrass Phalaris aquatica grows on both wet and dry sites.
5387522 bulbous canarygrass Phalaris aquatica inflorescences.
5387523 bulbous canarygrass Phalaris aquatica collar and sheath.
5387517 vaseygrass Paspalum urvillei inflorescence.
5387503 ravennagrass Ripidium ravennae collar and sheath.
5387505 dallisgrass Paspalum dilatatum habit. A common weed of wet and dry areas.
5387506 dallisgrass Paspalum dilatatum inflorescence.
5387509 dallisgrass Paspalum dilatatum collar and sheath.
5387510 dallisgrass Paspalum dilatatum seedling.
5387497 common reed Phragmites australis in native habitat along stream.
5387498 common reed Phragmites australis inflorescence.
5387500 ravennagrass Ripidium ravennae habit in riparian site.
5387501 ravennagrass Ripidium ravennae inflorescence.
5387502 ravennagrass Ripidium ravennae Young bunchgrass of ravennagrass
5387493 giant reed Arundo donax Second-year branching pattern of giant reed
5387494 giant reed Arundo donax collar and sheath region.
5387495 giant reed Arundo donax vegetatively reproducing from stem fragment.
5387489 giant reed Arundo donax adjacent to riparian area
5387490 giant reed Arundo donax within stream.
5387491 giant reed Arundo donax along roadside.
5387492 giant reed Arundo donax inflorescence. No viable seed are produced.
5387465 cockspur grass Echinochloa spp. Inflorescences of barnyardgrass (Echinochloa crus-galli) left, late watergrass (Echinochloa oryicola) center,and early watergrass (Echinochloa oryzoides) right
5387456 barnyardgrass Echinochloa crus-galli spikelets on inflorescence branch.
5387457 barnyardgrass Echinochloa crus-galli collar and sheath, liogule lacking
5387441 purple loosestrife Lythrum salicaria inflorescence post-flowering.
5387442 purple loosestrife Lythrum salicaria vegetative stem.
5387443 purple loosestrife Lythrum salicaria node with whorled leaf arrangement.
5387452 junglerice Echinochloa colona seedling.
5387455 barnyardgrass Echinochloa crus-galli inflorescence.
5387436 spearmint Mentha spicata flowering stem.
5387438 purple loosestrife Lythrum salicaria along river bank.
5387439 purple loosestrife Lythrum salicaria inflorescence.
5387440 purple loosestrife Lythrum salicaria flower.
5387434 pennyroyal Mentha pulegium stem along stream.
5387429 yellowflag iris Iris pseudacorus fruit.
5387430 yellowflag iris Iris pseudacorus large rhizome.
5387431 pennyroyal Mentha pulegium in a wet meadow.
5387432 pennyroyal Mentha pulegium plant.
5387433 pennyroyal Mentha pulegium inflorescence.
5387423 nimblewill Muhlenbergia schreberi stem and inflorescence.
5387424 nimblewill Muhlenbergia schreberi stolons.
5387425 nimblewill Muhlenbergia schreberi collar and sheath.
5387427 yellowflag iris Iris pseudacorus habit along margin of pond.
5387428 yellowflag iris Iris pseudacorus flower.
5387418 poison ryegrass Lolium temulentum inflorescence.
5387419 poison ryegrass Lolium temulentum spikelet with glume longer than florets.
5387420 poison ryegrass Lolium temulentum collar and sheath.
5387422 nimblewill Muhlenbergia schreberi inflorescences.
5387413 perennial ryegrass Lolium perenne spikelets.
5387414 perennial ryegrass Lolium perenne collar and sheath.
5387412 perennial ryegrass Lolium perenne plant.
5387404 cereal rye Secale cereale collar and sheath.
5387401 cereal rye Secale cereale field.
5387402 cereal rye Secale cereale inflorescences.
5387383 common velvetgrass Holcus lanatus plant.
5387384 common velvetgrass Holcus lanatus inflorescences, typically closed prior to flowering.
5387385 common velvetgrass Holcus lanatus collar and sheath.
5387397 foxtail barley Hordeum jubatum plant.
5387398 foxtail barley Hordeum jubatum inflorescences.
5387399 foxtail barley Hordeum jubatum collar and sheath.
5387371 nit grass Gastridium phleoides collar and sheath.
5387377 tanglehead Heteropogon contortus plant.
5387378 tanglehead Heteropogon contortus inflorescence.
5387379 tanglehead Heteropogon contortus with tangled caryopses.
5387380 tanglehead Heteropogon contortus collar and sheath.
5387369 nit grass Gastridium phleoides inflorescences at flowering.
5387370 nit grass Gastridium phleoides inflorescences at fruiting.
5387360 prairie cupgrass Eriochloa contracta seedling.
5387356 prairie cupgrass Eriochloa contracta plant.
5387357 prairie cupgrass Eriochloa contracta inflorescence.
5387358 prairie cupgrass Eriochloa contracta spikelets.
5387359 prairie cupgrass Eriochloa contracta collars and sheaths.
5387344 Lehmann lovegrass Eragrostis lehmanniana collar and sheaths.
5387338 weeping lovegrass Eragrostis curvula tuft of hairs at base of inflorescence branches.
5387339 weeping lovegrass Eragrostis curvula collar and sheath.
5387341 Lehmann lovegrass Eragrostis lehmanniana plants.
5387342 Lehmann lovegrass Eragrostis lehmanniana open and closed inflorescences.
5387336 weeping lovegrass Eragrostis curvula plants.
5387337 weeping lovegrass Eragrostis curvula inflorescence.
5387323 little lovegrass Eragrostis minor collar and sheath.
5387320 little lovegrass Eragrostis minor infestation in an agricultural field.
5387321 little lovegrass Eragrostis minor inflorescence.
5387322 little lovegrass Eragrostis minor spikelets.
5387318 stinkgrass Eragrostis cilianensis collar and sheath.
5387297 goosegrass Eleusine indica collar and sheath.
5387315 stinkgrass Eragrostis cilianensis plant.
5387316 stinkgrass Eragrostis cilianensis inflorescence.
5387317 stinkgrass Eragrostis cilianensis spikelets.
5387293 longflowered veldtgrass Ehrharta longiflora inflorescence.
5387295 goosegrass Eleusine indica plant in an erect form.
5387296 goosegrass Eleusine indica More typical low-growing goosegrass plant.
5387291 panic veldtgrass Ehrharta erecta collar and sheath.
5387283 perennial veldtgrass Ehrharta calycina infestation.
5387284 perennial veldtgrass Ehrharta calycina plant.
5387285 perennial veldtgrass Ehrharta calycina inflorescences.
5387286 perennial veldtgrass Ehrharta calycina collar and sheath.
5387289 panic veldtgrass Ehrharta erecta infestation.
5387290 panic veldtgrass Ehrharta erecta inflorescence.
5387280 carpetgrass Axonopus fissifolius in turf.
5387281 carpetgrass Axonopus fissifolius infloresence.
5387279 crabgrass Digitaria spp. Seedling of smooth crabgrass (Digitaria ischaemum) left and large crabgrass (Digitaria sanguinalis) right
5387274 large crabgrass Digitaria sanguinalis inflorescence.
5387275 large crabgrass Digitaria sanguinalis collar and sheath. Sheath often hairier.
5387276 large crabgrass Digitaria sanguinalis node with adventitious roots.
5387265 orchardgrass Dactylis glomerata inflorescence.
5387266 orchardgrass Dactylis glomerata collar and sheath.
5387269 smooth crabgrass Digitaria ischaemum plant.
5387270 smooth crabgrass Digitaria ischaemum inflorescence.
5387271 smooth crabgrass Digitaria ischaemum collar and sheath.
5387273 large crabgrass Digitaria sanguinalis plant.
5387263 orchardgrass Dactylis glomerata plants and inflorescences.
5387264 orchardgrass Dactylis glomerata plant.
5387256 hedgehog dogtailgrass Cynosurus echinatus plant.
5387257 hedgehog dogtailgrass Cynosurus echinatus inflorescence at flowering.
5387258 hedgehog dogtailgrass Cynosurus echinatus inflorescence at fruiting.
5387259 hedgehog dogtailgrass Cynosurus echinatus collar and sheath.
5387242 Chinese silvergrass Miscanthus sinensis collar and sheath.
5387244 bermudagrass Cynodon dactylon plant.
5387251 saltgrass Distichlis spicata female plant.
5387252 saltgrass Distichlis spicata inflorescence.
5387253 saltgrass Distichlis spicata inflorescence with female flowers only.
5387254 saltgrass Distichlis spicata collar and sheath.
5387237 Uruguayan pampas grass Cortaderia selloana collar and sheath.
5387240 Chinese silvergrass Miscanthus sinensis plant.
5387241 Chinese silvergrass Miscanthus sinensis inflorescences.
5387228 purple pampasgrass Cortaderia jubata infestation along coast.
5387229 purple pampasgrass Cortaderia jubata plant in a redwood forest.
5387230 purple pampasgrass Cortaderia jubata inflorescence.
5387231 purple pampasgrass Cortaderia jubata collar and sheath.
5387232 purple pampasgrass Cortaderia jubata seedlings.
5387235 Uruguayan pampas grass Cortaderia selloana female plant.
5387236 Uruguayan pampas grass Cortaderia selloana male right and female
5387212 longspine sandbur Cenchrus longispinus inflorescence.
5387213 longspine sandbur Cenchrus longispinus collar and sheath.
5387215 feather fingergrass Chloris virgata plant.
5387216 feather fingergrass Chloris virgata inflorescence.
5387217 feather fingergrass Chloris virgata collar and sheath.
5387225 crowfootgrass Dactyloctenium aegyptium inflorescence.
5387226 crowfootgrass Dactyloctenium aegyptium collar and sheath.
5387201 smooth brome Bromus inermis inflorescence.
5387202 smooth brome Bromus inermis collar and sheath.
5387205 southern sandbur Cenchrus echinatus inflorescence.
5387197 rattlesnake brome Bromus briziformis collar and sheath.
5387199 smooth brome Bromus inermis population.
5387200 smooth brome Bromus inermis plant.
5387177 poverty brome Bromus sterilis collar and sheath.
5387180 soft brome Bromus hordeaceus inflorescence.
5387181 soft brome Bromus hordeaceus collar and sheath.
5387195 rattlesnake brome Bromus briziformis inflorescence.
5387162 cheatgrass Bromus tectorum inflorescence just before flowering.
5387163 cheatgrass Bromus tectorum inflorescence at maturity.
5387165 cheatgrass Bromus tectorum collar and sheath.
5387176 poverty brome Bromus sterilis inflorescence.
5387156 California brome Bromus carinatus spikelets.
5387158 ripgut brome Bromus diandrus inflorescence.
5387159 ripgut brome Bromus diandrus collar and sheath.
5387161 cheatgrass Bromus tectorum plant.
5387152 rescuegrass Bromus catharticus collar and sheath.
5387154 California brome Bromus carinatus plant, a nonweedy native perennial similar to rescuegrass Bromus catharticus
5387155 California brome Bromus carinatus inflorescence.
5387143 big quakinggrass Briza maxima collar and sheath.
5387149 rescuegrass Bromus catharticus plant.
5387150 rescuegrass Bromus catharticus inflorescence.
5387151 rescuegrass Bromus catharticus spikelet.
5387136 sterile oat Avena sterilis spikelets.
5387137 annual false-brome Brachypodium distachyon inflorescences with several spikelets.
5387138 annual false-brome Brachypodium distachyon inflorescences with few spikelets.
5387139 annual false-brome Brachypodium distachyon collar and sheath.
5387141 big quakinggrass Briza maxima infestation.
5387142 big quakinggrass Briza maxima inflorescence.
5387124 slender oat Avena barbata collar and sheath.
5387127 wild oat Avena fatua immature plant.
5387128 wild oat Avena fatua inflorescence.
5387132 oat Avena sativa inflorescence.
5387133 oat Avena sativa collar and sheath.
5386241 Kentucky bluegrass Poa pratensis inflorescence and spikelets at flowering.
5387117 sweet vernalgrass Anthoxanthum odoratum with closed inflorescence after flowering.
5387118 sweet vernalgrass Anthoxanthum odoratum collar and sheath with long ligule.
5387119 sweet vernalgrass Anthoxanthum odoratum collar and sheath with short ligule.
5387122 slender oat Avena barbata inflorescence.
5387116 sweet vernalgrass Anthoxanthum odoratum with open inflorescence during flowering.
5387110 European beachgrass Ammophila arenaria infestation in a dune system.
5387111 European beachgrass Ammophila arenaria plant.
5387112 European beachgrass Ammophila arenaria inflorescence.
5387113 European beachgrass Ammophila arenaria collar and sheath.
5387097 meadow foxtail Alopecurus pratensis plants.
5387098 meadow foxtail Alopecurus pratensis inflorescences.
5387099 meadow foxtail Alopecurus pratensis collar and sheath.
5387086 creeping bentgrass Agrostis stolonifera plants after flowering.
5387087 creeping bentgrass Agrostis stolonifera inflorescence.
5387088 creeping bentgrass Agrostis stolonifera collar and sheath.
5387091 Pacific bentgrass Agrostis avenacea plant.
5387092 Pacific bentgrass Agrostis avenacea inflorescence.
5387093 Pacific bentgrass Agrostis avenacea collar and sheath.
5387095 colonial bentgrass Agrostis capillaris inflorescence.
5387096 water-bent Polypogon viridis inflorescence. Some floras refer to this as Agrostis viridis.
5387084 barb goatgrass Aegilops triuncialis collar and sheath.
5387075 jointed goatgrass Aegilops cylindrica collar and sheath.
5387081 barb goatgrass Aegilops triuncialis infestation.
5387082 barb goatgrass Aegilops triuncialis inflorescence.
5387065 punagrass Achnatherum brachychaetum inflorescence.
5387066 punagrass Achnatherum brachychaetum cleistogamous flowers within base of culm.
5387072 jointed goatgrass Aegilops cylindrica plants.
5387073 jointed goatgrass Aegilops cylindrica inflorescences.
5387074 jointed goatgrass Aegilops cylindrica embedded spikelets.
5387059 paleseed plantain Plantago virginica plant.
5387060 paleseed plantain Plantago virginica foliage.
5387061 paleseed plantain Plantago virginica flowering stem.
5387064 punagrass Achnatherum brachychaetum immature plant in an alfalfa field.
5387045 buckhorn plantain Plantago lanceolata flowering stem.
5387048 broadleaf plantain Plantago major plant.
5387049 broadleaf plantain Plantago major rosette.
5387050 broadleaf plantain Plantago major flowering stems.
5387051 broadleaf plantain Plantago major seedlings.
5387044 buckhorn plantain Plantago lanceolata foliage.
5387037 common pokeweed Phytolacca americana fruiting stem.
5387039 common pokeweed Phytolacca americana root.
5387036 common pokeweed Phytolacca americana plant.
5387024 buttercup oxalis Oxalis pes-caprae bulbs and bulblets.
5387025 windowbox woodsorrel Oxalis rubra plants.
5387026 windowbox woodsorrel Oxalis rubra flowers and leaves.
5387018 creeping woodsorrel Oxalis corniculata flowers.
5387019 creeping woodsorrel Oxalis corniculata fruit with seeds brown and arils white
5387020 creeping woodsorrel Oxalis corniculata seedling.
5387022 buttercup oxalis Oxalis pes-caprae plant.
5387023 buttercup oxalis Oxalis pes-caprae flowers.
5387011 showy evening-primrose Oenothera speciosa seedling.
5387016 creeping woodsorrel Oxalis corniculata plant.
5387010 showy evening-primrose Oenothera speciosa flower.
5387006 cutleaf evening-primrose Oenothera laciniata fruiting stem.
5387008 common evening-primrose Oenothera biennis flowering stem.
5386990 wavyleaf gaura Gaura sinuata with fruit and flowers.
5386997 Hooker's evening primrose Oenothera elata ssp. hookeri plant.
5386998 Hooker's evening primrose Oenothera elata ssp. hookeri flowering stem.
5386999 Hooker's evening primrose Oenothera elata ssp. hookeri fruiting stem.
5387001 Hooker's evening primrose Oenothera elata ssp. hookeri seedling.
5387004 cutleaf evening-primrose Oenothera laciniata plant.
5387005 cutleaf evening-primrose Oenothera laciniata flowers.
5386985 Drummond's beeblossom Gaura drummondii fruiting stem.
5386987 wavyleaf gaura Gaura sinuata plant.
5386988 wavyleaf gaura Gaura sinuata flowering stem.
5386989 wavyleaf gaura Gaura sinuata foliage.
5386978 scarlet gaura Gaura coccinea plant.
5386979 scarlet gaura Gaura coccinea flowering stem.
5386980 scarlet gaura Gaura coccinea fruiting stem.
5386982 Drummond's beeblossom Gaura drummondii plant.
5386983 Drummond's beeblossom Gaura drummondii flowering stem.
5386984 Drummond's beeblossom Gaura drummondii foliage.
5386962 redflower gum Eucalyptus ficifolia flowering branch, an uncommon escape from cultivation.
5386957 ngaio tree Myoporum laetum flowering stem.
5386958 ngaio tree Myoporum laetum fruiting stem.
5386959 ngaio tree Myoporum laetum sapling.
5386960 Tasmanian bluegum Eucalyptus globulus tree.
5386961 Tasmanian bluegum Eucalyptus globulus flowering branch.
5386952 osage-orange Maclura pomifera flowers and leaves.
5386953 osage-orange Maclura pomifera fruit.
5386954 white mulberry Morus alba foliage.
5386955 white mulberry Morus alba young plant.
5386956 ngaio tree Myoporum laetum shrub.
5386946 carpetweed Mollugo verticillata flowering stem.
5386948 edible fig Ficus carica tree.
5386949 edible fig Ficus carica leaf and fruit.
5386950 edible fig Ficus carica seedling.
5386951 osage-orange Maclura pomifera tree with fruit.
5386935 devil's-claw Proboscidea louisianica mature fruit.
5386944 carpetweed Mollugo verticillata plant.
5386945 carpetweed Mollugo verticillata leaves.
5386929 arrowleaf sida Sida rhombifolia flowering and fruiting stem.
5386930 arrowleaf sida Sida rhombifolia flower and leaves.
5386932 devil's-claw Proboscidea louisianica plant.
5386933 devil's-claw Proboscidea louisianica flower.
5386934 devil's-claw Proboscidea louisianica immature fruit cluster.
5386922 bristly mallow Modiola caroliniana plant with flowers and fruit.
5386923 bristly mallow Modiola caroliniana seedling.
5386925 alkali mallow Malvella leprosa plant.
5386926 alkali mallow Malvella leprosa flowering stem.
5386927 alkali mallow Malvella leprosa seedling.
5386908 little mallow Malva parviflora mature fruit.
5386909 little mallow Malva parviflora seedling.
5386898 common mallow Malva neglecta fruit with bracts on back.
5386905 little mallow Malva parviflora plant.
5386906 little mallow Malva parviflora flowering and fruiting stem.
5386907 little mallow Malva parviflora flower and fruit.
5386891 Venice mallow Hibiscus trionum flower.
5386892 Venice mallow Hibiscus trionum fruit and leaf.
5386893 Venice mallow Hibiscus trionum seedling.
5386895 common mallow Malva neglecta plant.
5386896 common mallow Malva neglecta flower.
5386897 common mallow Malva neglecta fruit.
5386890 Venice mallow Hibiscus trionum flower from side angle.
5386889 Venice mallow Hibiscus trionum
5386886 velvetleaf Abutilon theophrasti fruit.
5386887 velvetleaf Abutilon theophrasti seedling.
5386882 threebract loosestrife Lythrum tribracteatum flowering stem.
5386883 velvetleaf Abutilon theophrasti plant.
5386884 velvetleaf Abutilon theophrasti flowering stem.
5386885 velvetleaf Abutilon theophrasti flower with immature fruit.
5386878 California false-hellebore Veratrum californicum plant.
5386879 California false-hellebore Veratrum californicum flowers.
5386880 California false-hellebore Veratrum californicum population in a meadow.
5386881 threebract loosestrife Lythrum tribracteatum plant.
5386866 onionweed Asphodelus fistulosus plant.
5386867 onionweed Asphodelus fistulosus flowering stem.
5386856 wild garlic Allium vineale infestation in a wheat field.
5386833 white horehound Marrubium vulgare flowering stem.
5386844 Mediterranean sage Salvia aethiopis plant.
5386845 Mediterranean sage Salvia aethiopis flowering stem.
5386846 Mediterranean sage Salvia aethiopis rosettes.
5386847 Mediterranean sage Salvia aethiopis seedling.
5386815 toad rush Juncus bufonius seedling.
5386823 henbit Lamium amplexicaule plant.
5386824 henbit Lamium amplexicaule flowering stem.
5386828 purple deadnettle Lamium purpureum in flower.
5386829 purple deadnettle Lamium purpureum inflorescence.
5386830 purple deadnettle Lamium purpureum seedling.
5386832 white horehound Marrubium vulgare plant.
5386808 Rocky Mountain iris Iris missouriensis fruit.
5386809 Rocky Mountain iris Iris missouriensis large rhizome.
5386812 toad rush Juncus bufonius plant.
5386813 toad rush Juncus bufonius plant in flower.
5386814 toad rush Juncus bufonius stem with flower buds.
5386803 Douglas iris Iris douglasiana plant.
5386804 Douglas iris Iris douglasiana with blue flower.
5386805 Douglas iris Iris douglasiana with purple flower.
5386806 Douglas iris Iris douglasiana fruit.
5386794 herb-robert Geranium robertianum flower and developing fruit.
5386795 herb-robert Geranium robertianum seedlings.
5386793 herb-robert Geranium robertianum plant.
5386786 Carolina geranium Geranium carolinianum seedling.
5386785 Carolina geranium Geranium carolinianum flowers and remains of fruit.
5386783 Carolina geranium Geranium carolinianum flowering and fruiting stem.
5386784 Carolina geranium Geranium carolinianum leaf and flower.
5386774 cutleaf geranium Geranium dissectum flowering and fruiting stem.
5386775 cutleaf geranium Geranium dissectum leaves.
5386776 cutleaf geranium Geranium dissectum seedling.
5386773 cutleaf geranium Geranium dissectum plant.
5386763 stork's bill Erodium spp. Erodium cicutarium stem right and whitestem filaree Erodium moschatum stem left
5386755 redstem filaree Erodium cicutarium plant.
5386756 redstem filaree Erodium cicutarium flowering and fruiting stems.
5386747 Syrian beancaper Zygophyllum fabago fruiting stem.
5386748 Syrian beancaper Zygophyllum fabago fruit and leaves.
5386739 puncturevine Tribulus terrestris plant.
5386740 puncturevine Tribulus terrestris flowers and fruit.
5386741 puncturevine Tribulus terrestris fruit.
5386742 puncturevine Tribulus terrestris fruit with biocontrol agent.
5386745 Syrian beancaper Zygophyllum fabago plant with rootstalk.
5386731 European mistletoe Viscum album fruit and foliage.
5386732 European mistletoe Viscum album leaf.
5386733 African rue Peganum harmala plant with rootstalk.
5386735 African rue Peganum harmala fruit.
5386736 African rue Peganum harmala leaves.
5386738 puncturevine Tribulus terrestris infestation along a roadside.
5386718 pansy Viola tricolor plant.
5386719 pansy Viola tricolor flowers.
5386730 Pacific mistletoe Phoradendron villosum leaves.
5386677 orangeberry nightshade Solanum lanceolatum seedling.
5386685 buffalobur Solanum rostratum flowering stem.
5386686 buffalobur Solanum rostratum flowers.
5386687 buffalobur Solanum rostratum fruit.
5386688 buffalobur Solanum rostratum dehisced fruit.
5386689 buffalobur Solanum rostratum seedling.
5386673 orangeberry nightshade Solanum lanceolatum plants.
5386674 orangeberry nightshade Solanum lanceolatum flowering stem.
5386675 orangeberry nightshade Solanum lanceolatum flowers.
5386676 orangeberry nightshade Solanum lanceolatum fruiting stem.
5386669 silverleaf nightshade Solanum elaeagnifolium flowers.
5386662 horsenettle Solanum carolinense fruits.
5386663 horsenettle Solanum carolinense stem with prickles.
5386664 horsenettle Solanum carolinense young plant from rhizome.
5386667 silverleaf nightshade Solanum elaeagnifolium plant.
5386668 silverleaf nightshade Solanum elaeagnifolium flowering stem.
5386661 horsenettle Solanum carolinense flowers.
5386653 bittersweet nightshade Solanum dulcamara foliage and developing fruit.
5386655 cutleaf nightshade Solanum triflorum plant.
5386656 cutleaf nightshade Solanum triflorum fruit.
5386658 cutleaf nightshade Solanum triflorum seedling.
5386660 horsenettle Solanum carolinense plant.
5386643 black nightshade Solanum nigrum flowering stem.
5386647 hairy nightshade Solanum physalifolium plant.
5386648 hairy nightshade Solanum physalifolium fruiting stem.
5386651 bittersweet nightshade Solanum dulcamara flowering stem.
5386652 bittersweet nightshade Solanum dulcamara foliage and developing fruit.
5386632 tomatillo groundcherry Physalis philadelphica plant.
5386633 tomatillo groundcherry Physalis philadelphica flowering and fruiting stem.
5386635 tomatillo groundcherry Physalis philadelphica seedling.
5386640 American black nightshade Solanum americanum seedling.
5386622 sharpleaf groundcherry Physalis acutifolia plant.
5386625 sharpleaf groundcherry Physalis acutifolia seedling.
5386589 Chinese thorn-apple Datura quercifolia flower and fruit.
5386590 Chinese thorn-apple Datura quercifolia young plant.
5386591 Chinese thorn-apple Datura quercifolia seedling.
5386614 tree tobacco Nicotiana glauca flowering stem.
5386615 tree tobacco Nicotiana glauca seedling.
5386613 tree tobacco Nicotiana glauca plant.
5386601 sacred thorn-apple Datura wrightii flowering stem.
5386603 black henbane Hyoscyamus niger plant.
5386604 black henbane Hyoscyamus niger flowering stem.
5386605 black henbane Hyoscyamus niger fruiting stem.
5386606 black henbane Hyoscyamus niger seedling.
5386594 jimsonweed Datura stramonium flowering stem.
5386595 jimsonweed Datura stramonium fruit.
5386596 jimsonweed Datura stramonium seedling.
5386598 sacred thorn-apple Datura wrightii plant.
5386593 jimsonweed Datura stramonium plant.
5386586 tree-of-heaven Ailanthus altissima female plant with fruit.
5386587 tree-of-heaven Ailanthus altissima young plant.
5386583 tree-of-heaven Ailanthus altissima plants.
5386584 tree-of-heaven Ailanthus altissima young plants in urban area.
5386585 tree-of-heaven Ailanthus altissima male plant with flowers.
5386574 slender speedwell Veronica filiformis flowering stems.
5386573 slender speedwell Veronica filiformis flowering stems.
5386561 corn speedwell Veronica arvensis fruiting stems.
5386568 Persian speedwell Veronica persica plant.
5386569 Persian speedwell Veronica persica flowering stems.
5386560 corn speedwell Veronica arvensis flowering stems.
5386549 common mullein Verbascum thapsus along railroad track.
5386550 common mullein Verbascum thapsus flowering stem.
5386551 common mullein Verbascum thapsus rosette.
5386552 common mullein Verbascum thapsus seedlings.
5386540 yellow glandweed Parentucellia viscosa seedling.
5386544 moth mullein Verbascum blattaria plant.
5386545 moth mullein Verbascum blattaria flowering stem.
5386546 moth mullein Verbascum blattaria white flower form.
5386547 moth mullein Verbascum blattaria seedlings.
5386538 yellow glandweed Parentucellia viscosa plants.
5386539 yellow glandweed Parentucellia viscosa flowering stem.
5386526 yellow toadflax Linaria vulgaris flowering stem.
5386527 yellow toadflax Linaria vulgaris young plant.
5386519 dalmatian toadflax Linaria dalmatica ssp. dalmatica plant.
5386520 dalmatian toadflax Linaria dalmatica ssp. dalmatica foliage.
5386521 dalmatian toadflax Linaria dalmatica ssp. dalmatica flowering stem.
5386522 dalmatian toadflax Linaria dalmatica ssp. dalmatica flowers.
5386523 dalmatian toadflax Linaria dalmatica ssp. dalmatica seedling.
5386525 yellow toadflax Linaria vulgaris plants.
5386512 sharppoint fluvellin Kickxia elatine plant.
5386513 sharppoint fluvellin Kickxia elatine foliage.
5386514 sharppoint fluvellin Kickxia elatine flower.
5386515 sharppoint fluvellin Kickxia elatine young plant.
5386516 sharppoint fluvellin Kickxia elatine seedling.
5386518 dalmatian toadflax Linaria dalmatica ssp. dalmatica infestation.
5386504 bellardia Bellardia trixago seedling.
5386506 bellardia Bellardia trixago immature plant.
5386507 foxglove Digitalis purpurea plant.
5386508 foxglove Digitalis purpurea flowering stem.
5386509 foxglove Digitalis purpurea flowers.
5386510 foxglove Digitalis purpurea rosette.
5386500 yellow bedstraw Galium verum flowering stem
5386501 white poplar Populus alba foliage
5386502 bellardia Bellardia trixago plant.
5386503 bellardia Bellardia trixago flowering stem.
5386493 smooth bedstraw Galium mollugo flowering stem.
5386499 yellow bedstraw Galium verum plant.
5386485 field madder Sherardia arvensis flowering stem.
5386486 field madder Sherardia arvensis whorled leaves and calyx surrounding fruit.
5386484 field madder Sherardia arvensis plant.
5386475 catchweed bedstraw Galium aparine stems.
5386476 catchweed bedstraw Galium aparine flowers and fruit.
5386477 catchweed bedstraw Galium aparine seedling.
5386473 California blackberry Rubus ursinus foliage.
5386469 California blackberry Rubus ursinus population.
5386470 California blackberry Rubus ursinus male flower.
5386471 California blackberry Rubus ursinus female flower.
5386463 multiflora rose Rosa multiflora stem and prickles.
5386467 western thimbleberry Rubus parviflorus foliage and flowers.
5386468 western thimbleberry Rubus parviflorus fruit.
5386458 sweetbriar rose Rosa eglanteria fruit.
5386459 sweetbriar rose Rosa eglanteria stem with prickles.
5386461 multiflora rose Rosa multiflora flower cluster.
5386462 multiflora rose Rosa multiflora foliage.
5386448 slender cinquefoil Potentilla gracilis hairs on stem.
5386455 dog rose Rosa canina flower.
5386456 sweetbriar rose Rosa eglanteria flowering and fruiting stem.
5386457 sweetbriar rose Rosa eglanteria sepals with glandular hairs.
5386446 slender cinquefoil Potentilla gracilis a nonweedy native species that closely resembles sulfur cinquefoil P.recta.
5386447 slender cinquefoil Potentilla gracilis foliage.
5386440 sulfur cinquefoil Potentilla recta hairs on stem.
5386441 sulfur cinquefoil Potentilla recta seedling.
5386439 sulfur cinquefoil Potentilla recta foliage.
5386436 cherry plum Prunus cerasifera foliage.
5386437 sulfur cinquefoil Potentilla recta plant.
5386438 sulfur cinquefoil Potentilla recta flower.
5386429 narrowleaf firethorn Pyracantha angustifolia fruiting stems.
5386431 English hawthorn Crataegus monogyna flowering stem.
5386432 English hawthorn Crataegus monogyna fruit.
5386434 cherry plum Prunus cerasifera white flowering branches.
5386435 cherry plum Prunus cerasifera with pink flowers.
5386427 silverleaf cotoneaster Cotoneaster pannosus fruiting stem.
5386428 orange cotoneaster Cotoneaster franchetii flowering stem.
5386412 hairy buttercup Ranunculus sardous plant.
5386413 hairy buttercup Ranunculus sardous flowering stem.
5386424 milkflower cotoneaster Cotoneaster coriaceus flowering stem.
5386425 milkflower cotoneaster Cotoneaster coriaceus fruiting stem.
5386426 silverleaf cotoneaster Cotoneaster pannosus flowering stem.
5386403 corn buttercup Ranunculus arvensis flower and fruit.
5386404 corn buttercup Ranunculus arvensis fruit and leaf.
5386411 hairy buttercup Ranunculus sardous in a pasture.
5386395 creeping buttercup Ranunculus repens in turf.
5386396 creeping buttercup Ranunculus repens plant along stream.
5386397 creeping buttercup Ranunculus repens flower.
5386380 scarlet pimpernel Lysimachia arvensis plant.
5386381 scarlet pimpernel Lysimachia arvensis flowering stem.
5386382 scarlet pimpernel Lysimachia arvensis flower.
5386383 scarlet pimpernel Lysimachia arvensis seedling.
5386377 horse purslane Trianthema portulacastrum young rosette.
5386378 horse purslane Trianthema portulacastrum seedling.
5386376 horse purslane Trianthema portulacastrum flowering stem.
5386371 common purslane Portulaca oleracea plant.
5386372 common purslane Portulaca oleracea flowering stems.
5386374 common purslane Portulaca oleracea seedling.
5386359 red sorrel Rumex acetosella seedling.
5386361 redmaids Calandrinia ciliata population in an agricultural field.
5386362 redmaids Calandrinia ciliata population in an agricultural field.
5386363 redmaids Calandrinia ciliata flower.
5386364 redmaids Calandrinia ciliata seedling.
5386354 Sakhalin knotweed Fallopia sachalinensis flowering stem.
5386355 red sorrel Rumex acetosella plant.
5386356 red sorrel Rumex acetosella foliage.
5386357 red sorrel Rumex acetosella female inflorescence.
5386358 red sorrel Rumex acetosella male inflorescence.
5386348 Japanese knotweed Fallopia japonica stem with red mottling.
5386350 cultivated knotweed Persicaria wallichii plant.
5386351 cultivated knotweed Persicaria wallichii flowering stem.
5386352 cultivated knotweed Persicaria wallichii foliage.
5386353 Sakhalin knotweed Fallopia sachalinensis infestation.
5386340 wild buckwheat Fallopia convolvulus flowering stem.
5386342 wild buckwheat Fallopia convolvulus seedling.
5386345 Japanese knotweed Fallopia japonica plant.
5386346 Japanese knotweed Fallopia japonica flowering stem.
5386347 Japanese knotweed Fallopia japonica flowers.
5386330 oval-leaf knotweed Polygonum arenastrum flowering stem.
5386334 silversheath knotweed Polygonum argyrocoleon plant.
5386335 silversheath knotweed Polygonum argyrocoleon flowering stem.
5386336 silversheath knotweed Polygonum argyrocoleon seedling.
5386339 wild buckwheat Fallopia convolvulus plant.
5386324 squirreltail fescue Vulpia bromoides inflorescences.
5386325 squirreltail fescue Vulpia bromoides
5386328 smutgrass Sporobolus indicus
5386329 oval-leaf knotweed Polygonum arenastrum plant.
5386314 medusahead Taeniatherum caput-medusae inflorescence with mature fruit.
5386315 medusahead Taeniatherum caput-medusae shiny patch after senescence.
5386316 medusahead Taeniatherum caput-medusae
5386244 smilograss Piptatherum miliaceum
5386313 medusahead Taeniatherum caput-medusae inflorescence at flowering.
5386307 smutgrass Sporobolus indicus flowering stems.
5386308 smutgrass Sporobolus indicus inflorescences.
5386309 smutgrass Sporobolus indicus
5386299 johnsongrass Sorghum halepense plant with some inflorescences containing a fungus.
5386300 johnsongrass Sorghum halepense inflorescence.
5386301 johnsongrass Sorghum halepense inflorescence with a fungus.
5386304 johnsongrass Sorghum halepense collar and sheath.
5386294 sorghum Sorghum bicolor flowering stems.
5386295 sorghum Sorghum bicolor inflorescence.
5386296 sorghum Sorghum bicolor collar and sheath.
5386298 johnsongrass Sorghum halepense plant.
5386276 yellow foxtail Setaria pumila inflorescence.
5386277 yellow foxtail Setaria pumila collar and sheath.
5386281 green foxtail Setaria viridis inflorescence.
5386282 green foxtail Setaria viridis collar and sheath.
5386289 bristly foxtail Setaria verticillata plant.
5386290 bristly foxtail Setaria verticillata inflorescence.
5386291 bristly foxtail Setaria verticillata collar and sheath.
5386269 hardgrass Sclerochloa dura inflorescences.
5386270 hardgrass Sclerochloa dura collar and sheath.
5386272 giant foxtail Setaria faberi inflorescence.
5386273 giant foxtail Setaria faberi collar and sheath.
5386268 hardgrass Sclerochloa dura plant.
5386266 common mediterraneangrass Schismus barbatus collar and sheath.
5386260 Arabian schismus Schismus arabicus plant.
5386261 Arabian schismus Schismus arabicus inflorescence.
5386263 common mediterraneangrass Schismus barbatus plant.
5386264 common mediterraneangrass Schismus barbatus inflorescence.
5386265 common mediterraneangrass Schismus barbatus base with some leaves lacking blades.
5386249 Canada bluegrass Poa compressa collar and sheath.
5386251 fowl bluegrass Poa palustris inflorescence.
5386254 roughstalk bluegrass Poa trivialis inflorescences.
5386257 Kentucky bluegrass Poa pratensis inflorescence and spikelets at flowering.
5386258 rabbitfoot polypogon Polypogon monspeliensis mature plant in a seasonally moist grassland.
5386259 Arabian schismus Schismus arabicus infestation.
5386245 Kentucky bluegrass Poa pratensis collar and sheath.
5386247 Canada bluegrass Poa compressa plants.
5386248 Canada bluegrass Poa compressa inflorescences.
5386242 Kentucky bluegrass Poa pratensis inflorescence and spikelets at flowering.
5386243 Kentucky bluegrass Poa pratensis inflorescence at fruiting stage.
5386238 bulbous bluegrass Poa bulbosa
5386239 bulbous bluegrass Poa bulbosa bulbs at base of culm.  
5386235 bulbous bluegrass Poa bulbosa
5386236 bulbous bluegrass Poa bulbosa inflorescence with bulblets.
5386237 bulbous bluegrass Poa bulbosa inflorescence lacking bulblets.
5386229 annual bluegrass Poa annua inflorescence.
5386232 annual bluegrass Poa annua
5386226 smilograss Piptatherum miliaceum collar and sheath.
5386228 annual bluegrass Poa annua
5386221 canarygrass Phalaris canariensis inflorescence.
5386222 canarygrass Phalaris canariensis collar and sheath.
5386224 smilograss Piptatherum miliaceum inflorescence.
5386220 canarygrass Phalaris canariensis flowering stems.
5386213 littleseed canarygrass Phalaris minor spikelets and florets.
5386206 buffelgrass Pennisetum ciliare collar and sheath.
5386209 St. Augustinegrass Stenotaphrum secundatum inflorescence.
5386210 littleseed canarygrass Phalaris minor plant.
5386212 littleseed canarygrass Phalaris minor collar and sheath.
5386204 buffelgrass Pennisetum ciliare plant.
5386205 buffelgrass Pennisetum ciliare inflorescence.
5386201 feathertop Pennisetum villosum inflorescence.
5386202 feathertop Pennisetum villosum collar and sheath.
5386199 crimson fountaingrass Pennisetum setaceum plant. Rarely escaped from cultivation.
5386200 feathertop Pennisetum villosum plant.
5386195 crimson fountaingrass Pennisetum setaceum inflorescence.
5386196 crimson fountaingrass Pennisetum setaceum young bunchgrass.
5386197 crimson fountaingrass Pennisetum setaceum collar and sheath.
5386193 crimson fountaingrass Pennisetum setaceum infestation.
5386194 crimson fountaingrass Pennisetum setaceum
5386192 kikuyugrass Pennisetum clandestinum collar and sheath.
5386190 kikuyugrass Pennisetum clandestinum
5386189 kikuyugrass Pennisetum clandestinum
5386184 wild-proso millet Panicum miliaceum immature inflorescence.
5386185 wild-proso millet Panicum miliaceum collar and sheath.
5386179 fall panicum Panicum dichotomiflorum inflorescence.
5386180 fall panicum Panicum dichotomiflorum collar and sheath.
5386183 wild-proso millet Panicum miliaceum mature inflorescence.
5386171 witchgrass Panicum capillare
5386173 witchgrass Panicum capillare
5386174 witchgrass Panicum capillare collar and sheath.
5386178 fall panicum Panicum dichotomiflorum
5386169 blue panicum Panicum antidotale collar and sheath
5386168 blue panicum Panicum antidotale rhizome
5386167 blue panicum Panicum antidotale
5386588 Chinese thorn-apple Datura quercifolia flowering stem.
5374513 poverty sumpweed Iva axillaris immature sprouts from a rhizome
5374266 capeweed Arctotheca calendula sprout of infertile type
5374459 western marsh cudweed Gnaphalium palustre flowering stem
5375002 Russian-olive Elaeagnus angustifolia
5374999 whiteedge flatsedge Cyperus flavicomus inflorescence
5374997 redroot flatsedge Cyperus erythrorhizos on bank of irrigation canal
5374998 redroot flatsedge Cyperus erythrorhizos
5374994 tall flatsedge Cyperus eragrostis
5374995 tall flatsedge Cyperus eragrostis
5374993 smallflower umbrella sedge Cyperus difformis
5374990 hoary cress Lepidium draba
5374991 orbicular whitetop Lepidium chalepense flowers and fruit
5374992 hairy whitetop Cardaria pubescens
5374989 perennial pepperweed Lepidium latifolium
5374986 perennial pepperweed Lepidium latifolium
5374987 perennial pepperweed Lepidium latifolium basal rosette
5374988 perennial pepperweed Lepidium latifolium
5374985 perennial pepperweed Lepidium latifolium
5374983 dwarf St. Johnswort Hypericum mutilum
5374984 perennial pepperweed Lepidium latifolium
5374980 dwarf St. Johnswort Hypericum mutilum
5374981 dwarf St. Johnswort Hypericum mutilum
5374982 dwarf St. Johnswort Hypericum mutilum
5374979 common St. Johnswort Hypericum perforatum
5374977 common St. Johnswort Hypericum perforatum
5374978 common St. Johnswort Hypericum perforatum sprout from rhizome
5374975 common St. Johnswort Hypericum perforatum
5374976 common St. Johnswort Hypericum perforatum in flower
5374973 brassbuttons Cotula coronopifolia in flower
5374974 brassbuttons Cotula coronopifolia
5374972 brassbuttons Cotula coronopifolia along streamside
5374968 Russian-olive Elaeagnus angustifolia in riparian area
5374965 Fuller's teasel Dipsacus sativus
5374966 Fuller's teasel Dipsacus sativus leaf base and stem
5374967 Fuller's teasel Dipsacus sativus
5374962 common teasel Dipsacus fullonum
5374963 common teasel Dipsacus fullonum leaf base and stem
5374964 common teasel Dipsacus fullonum
5374960 hairy brackenfern Pteridium aquilinum var. pubescens
5374961 common teasel Dipsacus fullonum in flower
5374959 hairy brackenfern Pteridium aquilinum var. pubescens
5374958 green kyllinga Kyllinga brevifolia
5374957 green kyllinga Kyllinga brevifolia flowering stem
5374953 purple nutsedge Cyperus rotundus
5374954 purple nutsedge Cyperus rotundus
5374955 purple nutsedge Cyperus rotundus with tubers and rhizomes
5374956 purple nutsedge Cyperus rotundus tubers
5374951 yellow nutsedge Cyperus esculentus immature
5374952 yellow nutsedge Cyperus esculentus tubers
5374948 canyon dodder Cuscuta ceanothi
5374949 yellow nutsedge Cyperus esculentus
5374950 yellow nutsedge Cyperus esculentus
5374946 field dodder Cuscuta pentagona
5374947 field dodder Cuscuta pentagona
5374945 western juniper Juniperus occidentalis var. occidentalis branch with male flower clusters and fruit
5374944 western juniper Juniperus occidentalis var. occidentalis
5374943 Cucamonga manroot Marah macrocarpus
5374941 Cucamonga manroot Marah macrocarpus in flower
5374942 Cucamonga manroot Marah macrocarpus
5374940 buffalo gourd Cucurbita foetidissima
5374939 buffalo gourd Cucurbita foetidissima
5374937 citronmelon Citrullus lanatus var. citroides
5374938 buffalo gourd Cucurbita foetidissima
5374935 citronmelon Citrullus lanatus var. citroides in flower
5374936 citronmelon Citrullus lanatus var. citroides
5374934 blue morningglory Ipomoea indica
5374930 tall morningglory Ipomoea purpurea in flower
5374931 tall morningglory Ipomoea purpurea
5374932 tall morningglory Ipomoea purpurea
5374933 blue morningglory Ipomoea indica in flower
5374929 Japanese morningglory Ipomoea nil
5374928 ivyleaf morningglory Ipomoea hederacea in flower with unlobed leaves.
5374925 alkaliweed Cressa truxillensis
5374926 alkaliweed Cressa truxillensis
5374927 Japanese morningglory Ipomoea nil in flower
5374924 alkaliweed Cressa truxillensis
5374923 Asian ponysfoot Dichondra micrantha
5374922 field bindweed Convolvulus arvensis Convolvulus arvensis on the left and Calstegia occidentalis on the right.
5374921 mallow bindweed Convolvulus althaeoides
5374920 mallow bindweed Convolvulus althaeoides flower and leaf
5374918 field bindweed Convolvulus arvensis
5374919 field bindweed Convolvulus arvensis
5374916 field bindweed Convolvulus arvensis white flower form
5374917 field bindweed Convolvulus arvensis pink flower form
5374914 Mediterranean saltwort Salsola vermiculata
5374915 Mediterranean saltwort Salsola vermiculata
5374912 oppositeleaf Russian thistle Salsola soda
5374913 Mediterranean saltwort Salsola vermiculata
5374909 Russian-thistle Salsola tragus
5374910 oppositeleaf Russian thistle Salsola soda
5374911 oppositeleaf Russian thistle Salsola soda
5374907 Russian thistle Salsola kali ssp. austroafricana flower in leaf axil
5374908 Russian-thistle Salsola tragus young plant
5374896 clammy goosefoot Dysphania pumilio
5374895 clammy goosefoot Dysphania pumilio
5374894 clammy goosefoot Dysphania pumilio
5374893 cutleaf goosefoot Chenopodium multifidum
5374892 cutleaf goosefoot Chenopodium multifidum
5374891 cutleaf goosefoot Chenopodium multifidum
5374890 Jerusalem-oak goosefoot Chenopodium botrys
5374605 Eastwood's fiddleneck Amsinckia eastwoodiae
5374444 American burnweed Erechtites hieraciifolius fruiting
5374445 American burnweed Erechtites hieraciifolius flowering and fruiting heads
5374446 American burnweed Erechtites hieraciifolius
5374572 feverfew Tanacetum parthenium in flower
5374809 sticky chickweed Cerastium glomeratum in flower
5374810 sticky chickweed Cerastium glomeratum flowering stem
5374829 red sandspurry Spergularia rubra
5374889 Jerusalem-oak goosefoot Chenopodium botrys
5374888 Jerusalem-oak goosefoot Chenopodium botrys
5374905 Russian-thistle Salsola tragus
5374906 Russian-thistle Salsola tragus in leaf axil
5374902 barbwire Russian-thistle Salsola paulsenii
5374903 barbwire Russian-thistle Salsola paulsenii
5374904 Russian-thistle Salsola tragus
5374899 halogeton Halogeton glomeratus senesced plants
5374900 halogeton Halogeton glomeratus
5374901 barbwire Russian-thistle Salsola paulsenii
5374897 halogeton Halogeton glomeratus
5374898 halogeton Halogeton glomeratus
5374887 mexicantea Dysphania ambrosioides
5374886 mexicantea Dysphania ambrosioides
5374882 Nuttall povertyweed Monolepis nuttalliana flowering stem
5374883 Nuttall povertyweed Monolepis nuttalliana
5374884 Nuttall povertyweed Monolepis nuttalliana
5374885 mexicantea Dysphania ambrosioides
5374879 Missouri lambsquarters Chenopodium album var. missouriense
5374880 Missouri lambsquarters Chenopodium album var. missouriense
5374881 Nuttall povertyweed Monolepis nuttalliana
5374878 Missouri lambsquarters Chenopodium album var. missouriense
5374877 nettleleaf goosefoot Chenopodium murale
5374874 common beet Beta vulgaris rosette
5374875 lambsquarters Chenopodium album
5374876 lambsquarters Chenopodium album
5374871 Mexican fireweed Kochia scoparia
5374872 common beet Beta vulgaris
5374873 common beet Beta vulgaris
5374868 Mexican fireweed Kochia scoparia
5374869 Mexican fireweed Kochia scoparia inflorescence
5374870 Mexican fireweed Kochia scoparia
5374865 fivehook bassia Bassia hyssopifolia inflorescence
5374866 fivehook bassia Bassia hyssopifolia
5374867 fivehook bassia Bassia hyssopifolia
5374863 fivehook bassia Bassia hyssopifolia
5374864 fivehook bassia Bassia hyssopifolia
5374862 triangle orach Atriplex prostrata
5374860 triangle orach Atriplex prostrata
5374861 triangle orach Atriplex prostrata
5374857 garden orach Atriplex hortensis flowering stems and leaves
5374858 garden orach Atriplex hortensis
5374859 garden orach Atriplex hortensis
5374856 Australian saltbush Atriplex semibaccata fruiting stem
5374853 red orach Atriplex rosea
5374854 Australian saltbush Atriplex semibaccata
5374855 Australian saltbush Atriplex semibaccata flowering stems
5374850 red orach Atriplex rosea
5374851 red orach Atriplex rosea inflorescence
5374852 red orach Atriplex rosea
5374846 bladder campion Silene vulgaris flowers, node, and leaves
5374847 bladder campion Silene vulgaris
5374848 bladder campion Silene vulgaris
5374849 bladder campion Silene vulgaris
5374843 nightflowering catchfly Silene noctiflora
5374844 nightflowering catchfly Silene noctiflora node and leaves
5374845 nightflowering catchfly Silene noctiflora
5374840 bladder campion Silene latifolia ssp. alba in flower
5374841 bladder campion Silene latifolia ssp. alba
5374842 nightflowering catchfly Silene noctiflora
5374838 English catchfly Silene gallica inflorescence
5374839 English catchfly Silene gallica
5374835 bouncingbet Saponaria officinalis in flower
5374836 bouncingbet Saponaria officinalis
5374837 bouncingbet Saponaria officinalis
5374832 birdseye pearlwort Sagina procumbens
5374831 saltmarsh sandspurry Spergularia salina in flower
5374830 sticky sandspurry Spergularia macrotheca
5374828 red sandspurry Spergularia rubra
5374827 red sandspurry Spergularia rubra in flower
5374825 Boccone's sandspurry Spergularia bocconii
5374826 Boccone's sandspurry Spergularia bocconii
5374824 Boccone's sandspurry Spergularia bocconii in flower
5374823 corn spurry Spergula arvensis flowering stem
5374821 annual pearlwort Sagina apetala immature
5374822 corn spurry Spergula arvensis
5374819 annual pearlwort Sagina apetala
5374820 annual pearlwort Sagina apetala
5374818 babysbreath Gypsophila paniculata
5374816 babysbreath Gypsophila paniculata
5374817 babysbreath Gypsophila paniculata stem and leaves
5374814 thymeleaf sandwort Arenaria serpyllifolia
5374815 babysbreath Gypsophila paniculata
5374813 common chickweed Stellaria pallida hairs along one side of the stem
5374811 common chickweed Stellaria pallida in flower
5374812 common chickweed Stellaria pallida
5374807 common mouse-ear chickweed Cerastium fontanum
5374808 common mouse-ear chickweed Cerastium fontanum
5374806 common mouse-ear chickweed Cerastium fontanum in flower
5374805 marijuana Cannabis sativa
5374803 marijuana Cannabis sativa
5374804 marijuana Cannabis sativa
5374801 field pennycress Thlaspi arvense
5374802 marijuana Cannabis sativa
5374799 field pennycress Thlaspi arvense in flower
5374800 field pennycress Thlaspi arvense
5374797 oriental mustard Sisymbrium orientale stem leaf
5374798 field pennycress Thlaspi arvense in flower
5374796 oriental mustard Sisymbrium orientale
5374795 oriental mustard Sisymbrium orientale
5374794 oriental mustard Sisymbrium orientale in flower
5374791 tall hedge mustard Sisymbrium loeselii inflorescence
5374792 tall hedge mustard Sisymbrium loeselii
5374793 tall hedge mustard Sisymbrium loeselii
5374790 tall hedge mustard Sisymbrium loeselii in flower
5374789 Mediterranean rocket Sisymbrium erysimoides basal leaves
5374788 Mediterranean rocket Sisymbrium erysimoides
5374787 Mediterranean rocket Sisymbrium erysimoides inflorescence
5374786 hedge mustard Sisymbrium officinale
5374783 hedge mustard Sisymbrium officinale inflorescence
5374784 hedge mustard Sisymbrium officinale
5374785 hedge mustard Sisymbrium officinale basal leaves
5374780 London rocket Sisymbrium irio
5374781 hedge mustard Sisymbrium officinale in flower
5374782 hedge mustard Sisymbrium officinale in flower
5374777 London rocket Sisymbrium irio in flower
5374778 London rocket Sisymbrium irio inflorescence
5374779 London rocket Sisymbrium irio rosette
5374776 London rocket Sisymbrium irio
5374775 tumble mustard Sisymbrium altissimum
5374774 tumble mustard Sisymbrium altissimum rosette
5374773 tumble mustard Sisymbrium altissimum stem and leaves
5374771 tumble mustard Sisymbrium altissimum
5374772 tumble mustard Sisymbrium altissimum
5374770 shortpod mustard Hirschfeldia incana
5374769 shortpod mustard Hirschfeldia incana rosette
5374767 shortpod mustard Hirschfeldia incana
5374766 white mustard Sinapis alba
5374764 white mustard Sinapis alba
5374765 white mustard Sinapis alba
5374762 white mustard Sinapis alba
5374763 white mustard Sinapis alba inflorescence
5374760 wild mustard Sinapis arvensis
5374761 wild mustard Sinapis arvensis rosette
5374759 wild mustard Sinapis arvensis inflorescence
5374758 wild mustard Sinapis arvensis in flower
5374754 sibara Sibara virginica
5374755 mouse-ear cress Arabidopsis thaliana
5374756 mouse-ear cress Arabidopsis thaliana inflorescence
5374757 mouse-ear cress Arabidopsis thaliana
5374752 sibara Sibara virginica with flower and fruit
5374753 sibara Sibara virginica inflorescence
5374751 sibara Sibara virginica
5374750 marsh yellowcress Rorippa palustris
5374748 marsh yellowcress Rorippa palustris
5374749 marsh yellowcress Rorippa palustris
5374746 yellow fieldcress Rorippa sylvestris rhizome
5374747 yellow fieldcress Rorippa sylvestris
5374744 Austrian fieldcress Rorippa austriaca no viable seed produced
5374745 yellow fieldcress Rorippa sylvestris flowers and fruit
5374742 radish Raphanus sativus
5374743 radish Raphanus sativus
5374737 wild radish Raphanus raphanistrum
5374738 wild radish Raphanus raphanistrum
5374739 radish Raphanus sativus
5374740 radish Raphanus sativus in flower
5374741 radish Raphanus sativus
5374734 perennial pepperweed Lepidium latifolium
5374735 wild radish Raphanus raphanistrum in flower
5374736 wild radish Raphanus raphanistrum
5374732 Virginia pepperweed Lepidium virginicum with flower and fruit
5374733 Virginia pepperweed Lepidium virginicum
5374730 featherleaf pepperweed Lepidium pinnatifidum fruiting
5374731 Virginia pepperweed Lepidium virginicum in fruit
5374729 veiny pepperweed Lepidium oblongum var. oblongum inflorescence
5374727 veiny pepperweed Lepidium oblongum var. oblongum
5374728 veiny pepperweed Lepidium oblongum var. oblongum fruiting
5374725 shining pepperweed Lepidium nitidum var. nitidum flower and fruit
5374726 shining pepperweed Lepidium nitidum var. nitidum
5374678 little western bittercress Cardamine oligosperma with flower and fruit
5374679 little western bittercress Cardamine oligosperma
5374650 early wintercress Barbarea verna
5374649 early wintercress Barbarea verna width of fruit base nearly equal to that of the pedicel
5374648 early wintercress Barbarea verna
5374647 early wintercress Barbarea verna in flower
5374724 clasping pepperweed Lepidium perfoliatum
5374721 clasping pepperweed Lepidium perfoliatum fruiting
5374722 clasping pepperweed Lepidium perfoliatum
5374723 clasping pepperweed Lepidium perfoliatum clasping leaves
5374720 field pepperweed Lepidium campestre
5374718 field pepperweed Lepidium campestre stem and leaf bases
5374719 field pepperweed Lepidium campestre rosettes
5374714 Dyer's woad Isatis tinctoria
5374715 Dyer's woad Isatis tinctoria
5374716 field pepperweed Lepidium campestre in fruit
5374717 field pepperweed Lepidium campestre
5374711 Dyer's woad Isatis tinctoria
5374712 Dyer's woad Isatis tinctoria rosette
5374713 Dyer's woad Isatis tinctoria in fruit
5374710 Dyer's woad Isatis tinctoria in flower
5374709 Dyer's woad Isatis tinctoria in flower
5374706 flixweed Descurainia sophia
5374707 pinnate tansymustard Descurainia pinnata in flower
5374708 pinnate tansymustard Descurainia pinnata inflorescence
5374705 flixweed Descurainia sophia with young inflorescence
5374702 flixweed Descurainia sophia
5374703 flixweed Descurainia sophia in flower
5374704 flixweed Descurainia sophia inflorescence
5374701 greater swinecress Coronopus squamatus young rosette
5374700 greater swinecress Coronopus squamatus
5374699 greater swinecress Coronopus squamatus flowers at plant base
5374695 lesser swinecress Coronopus didymus flowering stem
5374696 lesser swinecress Coronopus didymus rosette
5374697 lesser swinecress Coronopus didymus
5374698 greater swinecress Coronopus squamatus
5374692 blue mustard Chorispora tenella
5374693 blue mustard Chorispora tenella
5374694 blue mustard Chorispora tenella
5374690 hairy whitetop Cardaria pubescens
5374691 blue mustard Chorispora tenella in flower
5374688 hairy whitetop Cardaria pubescens
5374689 hairy whitetop Cardaria pubescens leaf attachment
5374687 hairy whitetop Cardaria pubescens late in season in fruit
5374684 hoary cress Lepidium draba
5374685 hoary cress Lepidium draba
5374686 hoary cress Lepidium draba
5374683 hoary cress Lepidium draba in flower
5374682 hoary cress Lepidium draba infestation in wet area
5374680 orbicular whitetop Lepidium chalepense in flower
5374681 orbicular whitetop Lepidium chalepense
5374676 hairy bittercress Cardamine hirsuta with flowering stem
5374677 hairy bittercress Cardamine hirsuta
5374675 hairy bittercress Cardamine hirsuta in flower
5374674 shepherd's-purse Capsella bursa-pastoris
5374673 shepherd's-purse Capsella bursa-pastoris and fruit
5374671 Indian mustard Brassica juncea
5374672 Indian mustard Brassica juncea
5374669 African mustard Brassica tournefortii
5374670 Indian mustard Brassica juncea inflorescence
5374668 African mustard Brassica tournefortii downward turning hairs at base of the stem
5374667 African mustard Brassica tournefortii
5374665 African mustard Brassica tournefortii inflorescence
5374666 African mustard Brassica tournefortii
5374664 African mustard Brassica tournefortii
5374662 birdsrape mustard Brassica rapa with clasping bases
5374663 birdsrape mustard Brassica rapa
5374660 birdsrape mustard Brassica rapa inflorescence
5374661 birdsrape mustard Brassica rapa
5374659 birdsrape mustard Brassica rapa in flower
5374656 black mustard Brassica nigra
5374657 black mustard Brassica nigra
5374658 black mustard Brassica nigra
5374654 rapeseed Brassica napus
5374655 black mustard Brassica nigra in flower
5374652 rapeseed Brassica napus flowers and fruit
5374653 rapeseed Brassica napus with clasping base
5374651 American yellow rocket Barbarea orthoceras in flower
5374646 yellow rocket Barbarea vulgaris
5374644 yellow rocket Barbarea vulgaris
5374645 yellow rocket Barbarea vulgaris
5374643 yellow rocket Barbarea vulgaris
5374641 common borage Borago officinalis
5374642 yellow rocket Barbarea vulgaris in flower
5374640 common borage Borago officinalis
5374639 common comfrey Symphytum officinale stem and leaf base
5374637 common comfrey Symphytum officinale in flower
5374638 common comfrey Symphytum officinale
5374634 broadleaf forget-me-not Myosotis latifolia
5374635 true forget-me-not Myosotis scorpioides in flower
5374636 true forget-me-not Myosotis scorpioides
5374632 broadleaf forget-me-not Myosotis latifolia in flower
5374633 broadleaf forget-me-not Myosotis latifolia
5374630 clasping heliotrope Heliotropium amplexicaule
5374631 clasping heliotrope Heliotropium amplexicaule
5374629 clasping heliotrope Heliotropium amplexicaule in flower
5374628 European heliotrope Heliotropium europaeum
5374626 European heliotrope Heliotropium europaeum
5374627 European heliotrope Heliotropium europaeum
5374624 seaside heliotrope Heliotropium curassavicum
5374625 seaside heliotrope Heliotropium curassavicum
5374623 seaside heliotrope Heliotropium curassavicum
5374621 pine echium Echium pininana
5374622 pine echium Echium pininana
5374620 pine echium Echium pininana
5374617 salvation jane Echium plantagineum
5374618 salvation jane Echium plantagineum
5374619 salvation jane Echium plantagineum
5374614 pride of Madeira Echium candicans
5374615 pride of Madeira Echium candicans rosette
5374616 salvation jane Echium plantagineum in flower
5374612 pride of Madeira Echium candicans
5374613 pride of Madeira Echium candicans in flower
5374611 Pacific hound's tongue Cynoglossum grande
5374609 houndstongue Cynoglossum officinale young rosette
5374610 houndstongue Cynoglossum officinale
5374606 houndstongue Cynoglossum officinale
5374607 houndstongue Cynoglossum officinale
5374608 houndstongue Cynoglossum officinale flower and fruit
5374603 common fiddleneck Amsinckia menziesii var. intermedia young rosette
5374604 common fiddleneck Amsinckia menziesii var. intermedia
5374600 common fiddleneck Amsinckia menziesii var. intermedia
5374601 common fiddleneck Amsinckia menziesii var. intermedia in flower
5374602 common fiddleneck Amsinckia menziesii var. intermedia
5374599 common fiddleneck Amsinckia menziesii var. intermedia in flower
5374597 common cocklebur Xanthium strumarium flower and fruit
5374598 common cocklebur Xanthium strumarium
5374595 common cocklebur Xanthium strumarium with flower and fruit
5374596 common cocklebur Xanthium strumarium immature
5374593 spiny cocklebur Xanthium spinosum
5374594 spiny cocklebur Xanthium spinosum
5374590 common salsify Tragopogon porrifolius in flower
5374591 common salsify Tragopogon porrifolius
5374592 common salsify Tragopogon porrifolius
5374589 western salsify Tragopogon dubius with seed coat attached
5374586 western salsify Tragopogon dubius in flower
5374587 western salsify Tragopogon dubius
5374588 western salsify Tragopogon dubius
5374584 lesser hawkbit Leontodon taraxacoides in flower
5374585 lesser hawkbit Leontodon taraxacoides flower and fruiting heads
5374582 dandelion Taraxacum officinale
5374580 dandelion Taraxacum officinale in flower
5374581 dandelion Taraxacum officinale fruiting
5374578 common tansy Tanacetum vulgare
5374577 common tansy Tanacetum vulgare
5374575 common tansy Tanacetum vulgare in flower
5374576 common tansy Tanacetum vulgare
5374573 feverfew Tanacetum parthenium
5374574 feverfew Tanacetum parthenium
5374571 feverfew Tanacetum parthenium in flower
5374570 whiteplume wirelettuce Stephanomeria exigua ssp. coronaria
5374569 whiteplume wirelettuce Stephanomeria exigua ssp. coronaria
5374568 whiteplume wirelettuce Stephanomeria exigua ssp. coronaria in flower
5374567 spiny sowthistle Sonchus asper Sonchus oleraceus on the left and S. asper on the right.
5374566 annual sowthistle Sonchus oleraceus immature
5374565 annual sowthistle Sonchus oleraceus
5374563 spiny sowthistle Sonchus asper in flower
5374564 spiny sowthistle Sonchus asper in flower
5374562 lawn burweed Soliva sessilis fruiting head
5374561 lawn burweed Soliva sessilis
5374559 blessed milkthistle Silybum marianum
5374560 blessed milkthistle Silybum marianum
5374558 blessed milkthistle Silybum marianum
5374557 blessed milkthistle Silybum marianum immature plant
5374556 blessed milkthistle Silybum marianum
5374555 redpurple ragwort Senecio elegans
5374554 redpurple ragwort Senecio elegans
5374553 redpurple ragwort Senecio elegans in flower
5374552 woodland groundsel Senecio sylvaticus
5374550 woodland groundsel Senecio sylvaticus flowering and fruiting heads
5374551 woodland groundsel Senecio sylvaticus
5374548 woodland groundsel Senecio sylvaticus in logged area
5374549 woodland groundsel Senecio sylvaticus
5374545 tansy ragwort Senecio jacobaea rosette
5374546 common groundsel Senecio vulgaris
5374547 common groundsel Senecio vulgaris
5374542 bristly oxtongue Helminthotheca echioides
5374543 tansy ragwort Senecio jacobaea
5374544 tansy ragwort Senecio jacobaea
5374541 bristly oxtongue Helminthotheca echioides
5374540 bristly oxtongue Helminthotheca echioides
5374539 bristly oxtongue Helminthotheca echioides
5374537 snowy thistle Cirsium occidentale var. candidissimum in flower
5374538 snowy thistle Cirsium occidentale var. candidissimum rosette
5374533 Scotch thistle Onopordum acanthium in flower
5374534 Scotch thistle Onopordum acanthium
5374535 Scotch thistle Onopordum acanthium rosette
5374536 bull cottonthistle Onopordum tauricum
5374529 tall lettuce Lactuca canadensis
5374530 oxeye daisy Leucanthemum vulgare in flower
5374531 oxeye daisy Leucanthemum vulgare
5374532 oxeye daisy Leucanthemum vulgare
5374527 bitter lettuce Lactuca virosa
5374528 tall lettuce Lactuca canadensis bolted stem
5374525 bitter lettuce Lactuca virosa
5374526 bitter lettuce Lactuca virosa rosette
5374522 bitter lettuce Lactuca virosa
5374523 bitter lettuce Lactuca virosa
5374524 bitter lettuce Lactuca virosa
5374520 prickly lettuce Lactuca serriola
5374521 prickly lettuce Lactuca serriola
5374518 prickly lettuce Lactuca serriola type with deeply lobed leaves
5374519 prickly lettuce Lactuca serriola type without deeply lobed leaves
5374516 willowleaf lettuce Lactuca saligna leaves and stem
5374517 willowleaf lettuce Lactuca saligna
5374515 willowleaf lettuce Lactuca saligna
5374514 willowleaf lettuce Lactuca saligna
5374510 poverty sumpweed Iva axillaris
5374511 poverty sumpweed Iva axillaris
5374512 poverty sumpweed Iva axillaris flowering stem
5374506 hairy cat's ear Hypochaeris radicata in flower
5374507 hairy cat's ear Hypochaeris radicata
5374508 hairy cat's ear Hypochaeris radicata rosettes
5374509 hairy cat's ear Hypochaeris radicata
5374503 smooth cat's ear Hypochaeris glabra
5374504 smooth cat's ear Hypochaeris glabra in flower
5374505 smooth cat's ear Hypochaeris glabra
5374501 stinkwort Dittrichia graveolens flowers and fruits
5374502 stinkwort Dittrichia graveolens
5374499 stinkwort Dittrichia graveolens
5374500 stinkwort Dittrichia graveolens
5374498 threeray tarweed Hemizonia lobbii
5374496 Kellogg's tarweed Deinandra kelloggii inflorescence
5374497 Kellogg's tarweed Deinandra kelloggii
5374493 virgate tarweed Holocarpha virgata in flower
5374494 virgate tarweed Holocarpha virgata
5374495 virgate tarweed Holocarpha virgata
5374492 virgate tarweed Holocarpha virgata
5374490 orange hawkweed Hieracium aurantiacum
5374491 meadow hawkweed Hieracium caespitosum
5374486 telegraphplant Heterotheca grandiflora immature stem
5374487 telegraphplant Heterotheca grandiflora
5374488 orange hawkweed Hieracium aurantiacum
5374489 orange hawkweed Hieracium aurantiacum
5374482 pappose tarweed Centromadia parryi ssp. rudis
5374484 telegraphplant Heterotheca grandiflora
5374485 telegraphplant Heterotheca grandiflora
5374480 pappose tarweed Centromadia parryi ssp. rudis in flower
5374481 pappose tarweed Centromadia parryi ssp. rudis
5374479 Fitch's tarweed Hemizonia fitchii
5374477 Fitch's tarweed Hemizonia fitchii in flower
5374478 Fitch's tarweed Hemizonia fitchii rosette
5374476 Fitch's tarweed Hemizonia fitchii in flower
5374483 telegraphplant Heterotheca grandiflora
5374473 common tarweed Centromadia pungens ssp. pungens in flower
5374474 common tarweed Centromadia pungens ssp. pungens
5374475 common tarweed Centromadia pungens ssp. pungens
5374472 Maximilian sunflower Helianthus maximiliani
5374470 common sunflower Helianthus annuus in flower
5374471 common sunflower Helianthus annuus
5374468 Great Valley gumweed Grindelia camporum var. camporum in flower
5374469 Great Valley gumweed Grindelia camporum var. camporum
5374467 curlycup gumweed Grindelia squarrosa var. serrulata stem leaves
5374465 curlycup gumweed Grindelia squarrosa var. serrulata
5374466 curlycup gumweed Grindelia squarrosa var. serrulata immature
5374464 curlycup gumweed Grindelia squarrosa var. serrulata in flower
5374460 strawflower Helichrysum petiolare
5374461 strawflower Helichrysum petiolare
5374462 strawflower Helichrysum petiolare
5374463 strawflower Helichrysum petiolare
5374458 western marsh cudweed Gnaphalium palustre
5374456 purple cudweed Gamochaeta purpurea
5374457 purple cudweed Gamochaeta purpurea
5374455 Jersey cudweed Pseudognaphalium luteoalbum
5374453 Jersey cudweed Pseudognaphalium luteoalbum
5374454 Jersey cudweed Pseudognaphalium luteoalbum
5374452 Jersey cudweed Pseudognaphalium luteoalbum
5374450 hairy galinsoga Galinsoga quadriradiata
5374451 hairy galinsoga Galinsoga quadriradiata in flower
5374449 smallflower galinsoga Galinsoga parviflora persistent chaff on receptacle
5374448 smallflower galinsoga Galinsoga parviflora leaf, flower, and fruit
5374447 smallflower galinsoga Galinsoga parviflora flowering stem
5374441 Australian burnweed Erechtites minimus
5374442 Australian burnweed Erechtites minimus immature
5374443 Australian burnweed Erechtites minimus
5374440 cutleaf burnweed Erechtites glomeratus immature
5374438 cutleaf burnweed Erechtites glomeratus
5374439 cutleaf burnweed Erechtites glomeratus stem and leaves
5374437 cutleaf burnweed Erechtites glomeratus fruiting
5374436 cape ivy Delairea odorata
5374434 cape ivy Delairea odorata biotype with stipules.
5374435 cape ivy Delairea odorata biotype without stipules
5374433 cape ivy Delairea odorata flower heads and foliage.
5374430 cardoon Cynara cardunculus
5374431 cape ivy Delairea odorata
5374432 cape ivy Delairea odorata
5374428 cardoon Cynara cardunculus
5374429 cardoon Cynara cardunculus
5374425 common crupina Crupina vulgaris leaves and stem
5374426 common crupina Crupina vulgaris
5374427 common crupina Crupina vulgaris
5374422 common crupina Crupina vulgaris
5374423 common crupina Crupina vulgaris
5374424 common crupina Crupina vulgaris
5374419 bristly hawksbeard Crepis setosa in flower
5374420 bristly hawksbeard Crepis setosa
5374421 bristly hawksbeard Crepis setosa
5374417 Italian hawksbeard Crepis bursifolia flowers and fruit
5374418 Italian hawksbeard Crepis bursifolia
5374414 smooth hawksbeard Crepis capillaris
5374415 smooth hawksbeard Crepis capillaris
5374416 smooth hawksbeard Crepis capillaris
5374413 smooth hawksbeard Crepis capillaris in flower
5374412 Mexican brassbuttons Cotula mexicana
5374411 southern brassbuttons Cotula australis
5374407 tall fleabane Conyza floribunda in flower
5374408 tall fleabane Conyza floribunda
5374409 tall fleabane Conyza floribunda
5374410 southern brassbuttons Cotula australis
5374404 Coulter's horseweed Laennecia coulteri immature
5374405 Coulter's horseweed Laennecia coulteri
5374406 Coulter's horseweed Laennecia coulteri
5374403 Coulter's horseweed Laennecia coulteri in flower
5374401 horseweed Conyza canadensis flowering and fruiting
5374402 horseweed Conyza canadensis rosettes
5374399 horseweed Conyza canadensis
5374400 horseweed Conyza canadensis
5374398 hairy fleabane Conyza bonariensis
5374396 hairy fleabane Conyza bonariensis flowering and fruiting stem
5374397 hairy fleabane Conyza bonariensis
5374393 peregrine thistle Cirsium cymosum
5374394 peregrine thistle Cirsium cymosum
5374395 hairy fleabane Conyza bonariensis in flower
5374392 bull thistle Cirsium vulgare rosette
5374390 bull thistle Cirsium vulgare in flower
5374391 bull thistle Cirsium vulgare
5374388 wavyleaf thistle Cirsium undulatum rosette
5374389 bull thistle Cirsium vulgare in flower
5374384 yellowspine thistle Cirsium ochrocentrum
5374385 yellowspine thistle Cirsium ochrocentrum rosette
5374386 wavyleaf thistle Cirsium undulatum in flower
5374387 wavyleaf thistle Cirsium undulatum
5374382 Canada thistle Cirsium arvense young sprout from rhizome
5374383 yellowspine thistle Cirsium ochrocentrum in flower
5374380 Canada thistle Cirsium arvense female flowers
5374381 Canada thistle Cirsium arvense male flowers
5374379 Canada thistle Cirsium arvense male plants on left and female on right
5374376 blue lettuce Lactuca tatarica var. pulchella
5374377 blue lettuce Lactuca tatarica var. pulchella
5374378 blue lettuce Lactuca tatarica var. pulchella
5374375 chicory Cichorium intybus rosettes with previous years stems
5374372 chicory Cichorium intybus in flower
5374373 chicory Cichorium intybus
5374374 chicory Cichorium intybus
5374370 rush skeletonweed Chondrilla juncea downward pointing hairs at base of the stem
5374371 rush skeletonweed Chondrilla juncea
5374367 rush skeletonweed Chondrilla juncea immature, showing similarity to dandelion and chicory.
5374368 rush skeletonweed Chondrilla juncea
5374369 rush skeletonweed Chondrilla juncea
5374366 rush skeletonweed Chondrilla juncea in flower
5374353 alpine knapweed Centaurea nigrescens
5374351 alpine knapweed Centaurea nigrescens in flower
5374352 alpine knapweed Centaurea nigrescens
5374364 pineapple-weed Matricaria discoidea
5374365 pineapple-weed Matricaria discoidea
5374363 sulphur knapweed Centaurea sulphurea
5374360 yellow starthistle Centaurea solstitialis
5374361 sulphur knapweed Centaurea sulphurea immature
5374362 sulphur knapweed Centaurea sulphurea stem and leaves
5374357 Malta starthistle Centaurea melitensis
5374358 yellow starthistle Centaurea solstitialis
5374359 yellow starthistle Centaurea solstitialis in flower
5374354 Malta starthistle Centaurea melitensis buds and flower head
5374355 Malta starthistle Centaurea melitensis post senescence
5374356 Malta starthistle Centaurea melitensis rosette
5374349 black knapweed Centaurea nigra all flowers same length
5374350 black knapweed Centaurea nigra
5374347 North African knapweed Centaurea diluta
5374348 North African knapweed Centaurea diluta
5374345 cornflower Centaurea cyanus
5374346 cornflower Centaurea cyanus
5374344 cornflower Centaurea cyanus in flower
5374342 squarrose knapweed Centaurea virgata stem and leaves
5374343 squarrose knapweed Centaurea virgata
5374340 squarrose knapweed Centaurea virgata in flower
5374341 squarrose knapweed Centaurea virgata
5374336 spotted knapweed Centaurea stoebe ssp. micranthos white flower head
5374337 spotted knapweed Centaurea stoebe ssp. micranthos stem and leaves
5374338 spotted knapweed Centaurea stoebe ssp. micranthos rosette
5374339 spotted knapweed Centaurea stoebe ssp. micranthos
5374333 diffuse knapweed Centaurea diffusa
5374334 spotted knapweed Centaurea stoebe ssp. micranthos in flower
5374335 spotted knapweed Centaurea stoebe ssp. micranthos
5374331 diffuse knapweed Centaurea diffusa stem leaves
5374332 diffuse knapweed Centaurea diffusa buds on rootstalk
5374329 diffuse knapweed Centaurea diffusa Two color forms (white and purple)
5374330 diffuse knapweed Centaurea diffusa white and purple form
5374328 purple starthistle Centaurea calcitrapa rosettes
5374325 purple starthistle Centaurea calcitrapa
5374326 purple starthistle Centaurea calcitrapa
5374327 purple starthistle Centaurea calcitrapa
5374321 woolly distaff thistle Carthamus lanatus immature
5374322 woolly distaff thistle Carthamus lanatus
5374323 blessed thistle Cnicus benedictus
5374324 blessed thistle Cnicus benedictus
5374318 slenderflower thistle Carduus tenuiflorus
5374319 woolly distaff thistle Carthamus lanatus in flower
5374320 woolly distaff thistle Carthamus lanatus in flower
5374314 Italian plumeless thistle Carduus pycnocephalus in flower
5374315 Italian plumeless thistle Carduus pycnocephalus
5374316 Italian plumeless thistle Carduus pycnocephalus basal rosette
5374317 Italian plumeless thistle Carduus pycnocephalus
5374311 musk thistle Carduus nutans basal rosette
5374312 musk thistle Carduus nutans
5374308 musk thistle Carduus nutans
5374309 musk thistle Carduus nutans in flower
5374310 musk thistle Carduus nutans
5374305 spiny plumeless thistle Carduus acanthoides in flower
5374306 spiny plumeless thistle Carduus acanthoides
5374307 spiny plumeless thistle Carduus acanthoides
5374303 bur beggarticks Bidens tripartita
5374304 bur beggarticks Bidens tripartita
5374302 bur beggarticks Bidens tripartita in flower
5374288 slender aster Symphyotrichum divaricatum immature
5374289 slender aster Symphyotrichum divaricatum
5374286 slender aster Symphyotrichum divaricatum
5374287 slender aster Symphyotrichum divaricatum flower and fruit
5374284 slender aster Symphyotrichum divaricatum
5374285 slender aster Symphyotrichum divaricatum
5374281 California mugwort Artemisia douglasiana
5374282 California mugwort Artemisia douglasiana
5374283 California mugwort Artemisia douglasiana
5374272 glandular Cape marigold Dimorphotheca sinuata
5374271 glandular Cape marigold Dimorphotheca sinuata in flower
5374270 field marigold Calendula arvensis flower and fruit
5374269 field marigold Calendula arvensis in flower
5374219 white bladderflower Araujia sericifera in flower
5374213 Algerian ivy Hedera helix ssp. canariensis English ivy (H. helix) on left and Algerian ivy (H. helix ssp. canariensis) on right.
5374212 Algerian ivy Hedera helix ssp. canariensis
5374203 musky marshpennywort Hydrocotyle moschata plants with flower and fruit
5374198 southwestern carrot Daucus pusillus
5374197 southwestern carrot Daucus pusillus in flower
5374183 spotted water hemlock Cicuta maculata var. angustifolia
5374184 spotted water hemlock Cicuta maculata var. angustifolia chambered root
5374181 spotted water hemlock Cicuta maculata var. angustifolia in flower
5374182 spotted water hemlock Cicuta maculata var. angustifolia
5374177 venus-comb Scandix pecten-veneris
5374178 venus-comb Scandix pecten-veneris
5374176 venus-comb Scandix pecten-veneris
5374174 knotted hedgeparsley Torilis nodosa in flower
5374175 knotted hedgeparsley Torilis nodosa in flower
5374166 bur chervil Anthriscus caucalis flowers and foliage
5374167 bur chervil Anthriscus caucalis
5374168 bur chervil Anthriscus caucalis
5374165 bur chervil Anthriscus caucalis
5374163 wild celery Cyclospermum leptophyllum
5374164 wild celery Cyclospermum leptophyllum
5374162 wild celery Cyclospermum leptophyllum flower and fruit
5374161 wild celery Cyclospermum leptophyllum
5374158 toothpick ammi Ammi visnaga
5374159 toothpick ammi Ammi visnaga
5374160 toothpick ammi Ammi visnaga
5374157 toothpick ammi Ammi visnaga
5374156 greater ammi Ammi majus
5374154 greater ammi Ammi majus in flower
5374155 greater ammi Ammi majus inflorescence
5374153 greater ammi Ammi majus in flower
5374149 Pacific poison-oak Toxicodendron diversilobum fall foliage
5374126 low amaranth Amaranthus deflexus
5374127 low amaranth Amaranthus deflexus
5374125 low amaranth Amaranthus deflexus in agricultural field
5374119 mat chaff-flower Alternanthera caracasana
5374117 mat chaff-flower Alternanthera caracasana
5374118 mat chaff-flower Alternanthera caracasana
5374116 mat chaff-flower Alternanthera caracasana in turf
5374115 crystalline iceplant Mesembryanthemum crystallinum papillae on stem and petiole
5374111 coppery mesemb Malephora crocea in flower
5374109 showy dewflower Drosanthemum floribundum in flower
5374110 showy dewflower Drosanthemum floribundum
5374106 sea fig Carpobrotus chilensis in flower
5374300 devils beggarticks Bidens frondosa
5374301 devils beggarticks Bidens frondosa
5374298 devils beggarticks Bidens frondosa
5374299 devils beggarticks Bidens frondosa
5374296 hairy beggarticks Bidens pilosa
5374297 hairy beggarticks Bidens pilosa
5374293 hairy beggarticks Bidens pilosa in flower
5374294 hairy beggarticks Bidens pilosa without ray flowers
5374295 hairy beggarticks Bidens pilosa with ray flowers
5374291 English daisy Bellis perennis in flower
5374292 English daisy Bellis perennis
5374290 annual fleabane Erigeron annuus
5374280 annual wormwood Artemisia annua
5374277 biennial wormwood Artemisia biennis
5374278 biennial wormwood Artemisia biennis immature plant
5374279 biennial wormwood Artemisia biennis rosette
5374274 big sagebrush Artemisia tridentata in flower
5374275 big sagebrush Artemisia tridentata immature
5374276 biennial wormwood Artemisia biennis in flower
5374273 big sagebrush Artemisia tridentata
5374268 capeweed Arctotheca calendula fertile type
5374267 capeweed Arctotheca calendula fertile type
5374264 capeweed Arctotheca calendula infestation of infertile type
5374265 capeweed Arctotheca calendula infertile type
5374262 yellow chamomile Anthemis tinctoria
5374263 yellow chamomile Anthemis tinctoria
5374260 corn chamomile Anthemis arvensis
5374261 yellow chamomile Anthemis tinctoria in flower
5374257 stinking chamomile Anthemis cotula
5374258 corn chamomile Anthemis arvensis stem and foliage
5374259 corn chamomile Anthemis arvensis
5374254 western ragweed Ambrosia psilostachya
5374255 stinking chamomile Anthemis cotula in flower
5374256 stinking chamomile Anthemis cotula in flower
5374253 western ragweed Ambrosia psilostachya
5374252 western ragweed Ambrosia psilostachya in flower
5374249 common ragweed Ambrosia artemisiifolia
5374250 common ragweed Ambrosia artemisiifolia
5374251 common ragweed Ambrosia artemisiifolia
5374248 common ragweed Ambrosia artemisiifolia in flower
5374246 giant ragweed Ambrosia trifida
5374247 giant ragweed Ambrosia trifida
5374242 annual bursage Ambrosia acanthicarpa inflorescence
5374243 annual bursage Ambrosia acanthicarpa
5374244 annual bursage Ambrosia acanthicarpa
5374245 giant ragweed Ambrosia trifida
5374241 annual bursage Ambrosia acanthicarpa in flower
5374238 croftonweed Ageratina adenophora in flower
5374239 croftonweed Ageratina adenophora in flower
5374240 croftonweed Ageratina adenophora
5374237 Russian knapweed Rhaponticum repens basal rosette
5374222 white bladderflower Araujia sericifera cross section
5374234 Russian knapweed Rhaponticum repens
5374235 Russian knapweed Rhaponticum repens
5374236 Russian knapweed Rhaponticum repens fruiting
5374230 common yarrow Achillea millefolium
5374231 common yarrow Achillea millefolium basal rosette
5374232 common yarrow Achillea millefolium
5374233 Russian knapweed Rhaponticum repens in flower
5374226 showy milkweed Asclepias speciosa in flower
5374227 showy milkweed Asclepias speciosa
5374228 showy milkweed Asclepias speciosa
5374229 common yarrow Achillea millefolium in flower
5374223 Mexican whorled milkweed Asclepias fascicularis in flower
5374224 Mexican whorled milkweed Asclepias fascicularis
5374225 Mexican whorled milkweed Asclepias fascicularis fruit and seeds
5374221 white bladderflower Araujia sericifera
5374211 English ivy Hedera helix leaf of flowering stem
5374209 English ivy Hedera helix fruiting stem.
5374208 English ivy Hedera helix
5374220 white bladderflower Araujia sericifera
5374215 Canary Island date palm Phoenix canariensis
5374216 Washington fan palm Washingtonia robusta
5374217 Washington fan palm Washingtonia robusta
5374218 Washington fan palm Washingtonia robusta
5374210 English ivy Hedera helix
5374214 Canary Island date palm Phoenix canariensis
5374205 big periwinkle Vinca major
5374206 big periwinkle Vinca major
5374207 English holly Ilex aquifolium fruiting
5374204 big periwinkle Vinca major in flower
5374200 fennel Foeniculum vulgare base of plant and foliage
5374201 fennel Foeniculum vulgare
5374202 fennel Foeniculum vulgare
5374199 fennel Foeniculum vulgare in flower
5374196 Queen Anne's lace, wild carrot Daucus carota
5374195 Queen Anne's lace, wild carrot Daucus carota inflorescenece and infructescence
5374193 Queen Anne's lace, wild carrot Daucus carota in flower
5374194 Queen Anne's lace, wild carrot Daucus carota in flower
5374192 poison-hemlock Conium maculatum
5374189 poison-hemlock Conium maculatum in flower
5374190 poison-hemlock Conium maculatum
5374191 poison-hemlock Conium maculatum
5374188 poison-hemlock Conium maculatum
5374187 wild parsnip Pastinaca sativa
5374185 wild parsnip Pastinaca sativa in flower
5374186 wild parsnip Pastinaca sativa
5374173 hedgeparsley Torilis arvensis
5374179 western waterhemlock Cicuta douglasii in flower
5374180 western waterhemlock Cicuta douglasii
5374170 hedgeparsley Torilis arvensis
5374171 hedgeparsley Torilis arvensis
5374172 hedgeparsley Torilis arvensis foliage and fruit
5374169 hedgeparsley Torilis arvensis in flower
5374151 skunkbush sumac Rhus trilobata
5374152 skunkbush sumac Rhus trilobata
5374148 Pacific poison-oak Toxicodendron diversilobum foliage and fruit
5374150 skunkbush sumac Rhus trilobata
5374145 Brazilian peppertree Schinus terebinthifolius with fruit
5374146 Pacific poison-oak Toxicodendron diversilobum
5374147 Pacific poison-oak Toxicodendron diversilobum
5374142 Peruvian peppertree Schinus molle
5374143 Peruvian peppertree Schinus molle
5374144 Brazilian peppertree Schinus terebinthifolius foliage and fruit
5374140 Powell amaranth Amaranthus powellii
5374141 Peruvian peppertree Schinus molle
5374138 redroot pigweed Amaranthus retroflexus
5374139 redroot pigweed Amaranthus retroflexus
5374137 redroot pigweed Amaranthus retroflexus
5374134 Palmer amaranth Amaranthus palmeri in flower
5374135 Palmer amaranth Amaranthus palmeri
5374136 Palmer amaranth Amaranthus palmeri
5374130 spiny amaranth Amaranthus spinosus
5374131 smooth pigweed Amaranthus hybridus in flower
5374132 smooth pigweed Amaranthus hybridus
5374133 smooth pigweed Amaranthus hybridus
5374128 spiny amaranth Amaranthus spinosus in flower
5374129 spiny amaranth Amaranthus spinosus stem and thorns
5374123 prostrate pigweed Amaranthus blitoides
5374124 prostrate pigweed Amaranthus blitoides
5374120 tumble pigweed Amaranthus albus
5374121 tumble pigweed Amaranthus albus
5374122 prostrate pigweed Amaranthus blitoides
5374113 crystalline iceplant Mesembryanthemum crystallinum in flower
5374114 slenderleaf iceplant Mesembryanthemum nodiflorum in flower
5374112 crystalline iceplant Mesembryanthemum crystallinum in flower
5374107 narrow-leaved iceplant Conicosia pugioniformis in flower
5374108 narrow-leaved iceplant Conicosia pugioniformis
5374103 hottentot fig Carpobrotus edulis
5374104 hottentot fig Carpobrotus edulis
5374105 sea fig Carpobrotus chilensis
5374102 hottentot fig Carpobrotus edulis
5371308 slenderflower thistle Carduus tenuiflorus flowering stems. From Weeds of California and other Western States.

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