| 5387585 |
marshpepper smartweed |
Polygonum hydropiper |
node with ocrea. |
| 5387446 |
hyssop loosestrife |
Lythrum hyssopifolium |
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. |
| 5374971 |
floating pennywort |
Hydrocotyle ranunculoides |
inflorescence |
| 5387609 |
toothed dock |
Rumex dentatus |
flowering stem. |
| 5387584 |
marshpepper smartweed |
Polygonum hydropiper |
inflorescence. |
| 5386969 |
fringed willowherb |
Epilobium ciliatum ssp. ciliatum |
flowering stem. |
| 5386970 |
fringed willowherb |
Epilobium ciliatum ssp. ciliatum |
flowering stem. Hairy form of the species. |
| 5386917 |
Cornish mallow |
Lavatera cretica |
flowering stem. |
| 5386801 |
roundleaf geranium |
Geranium rotundifolium |
flowering stem. |
| 5386761 |
whitestem filaree |
Erodium moschatum |
leaf and fruiting stem. |
| 5386697 |
California nettle |
Urtica dioica ssp. gracilis |
flowering stem. |
| 5386580 |
brightblue speedwell |
Veronica serpyllifolia ssp. humifusa |
fruiting stem. |
| 5386572 |
germander speedwell |
Veronica chamaedrys |
flowering stem. |
| 5386579 |
brightblue speedwell |
Veronica serpyllifolia ssp. humifusa |
flowering stem. |
| 5386565 |
hairy purslane speedwell |
Veronica peregrina ssp. xalapensis |
fruiting stem. |
| 5387616 |
Kerner's dock |
Rumex kerneri |
mature fruiting cluster. |
| 5387610 |
toothed dock |
Rumex dentatus |
fruit clusters. |
| 5387606 |
cluster dock |
Rumex conglomeratus |
fruit cluster. |
| 5386964 |
panicle willowherb |
Epilobium brachycarpum |
|
| 5386971 |
fringed willowherb |
Epilobium ciliatum ssp. ciliatum |
|
| 5386918 |
Cornish mallow |
Lavatera cretica |
|
| 5386919 |
Cornish mallow |
Lavatera cretica |
fruit with bracts on back. |
| 5386902 |
bull mallow |
Malva nicaeensis |
fruit from front and back. |
| 5386769 |
shortfruit stork's bill |
Erodium brachycarpum |
leaves on hairy stem. |
| 5386768 |
shortfruit stork's bill |
Erodium brachycarpum |
fruit cluster. |
| 5386698 |
California nettle |
Urtica dioica ssp. gracilis |
|
| 5386694 |
stinging nettle |
Urtica dioica ssp. holosericea |
stinging hairs. |
| 5386535 |
purple toadflax |
Linaria purpurea |
|
| 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. |
| 5386480 |
wall bedstraw |
Galium parisiense |
flowering stem. |
| 5386481 |
wall bedstraw |
Galium parisiense |
|
| 5386419 |
biddy-biddy |
Acaena novae-zelandiae |
flower head. |
| 5387643 |
American speedwell |
Veronica americana |
foliage and flowers. |
| 5387580 |
ladysthumb |
Persicaria maculosa |
node with ocrea. |
| 5387587 |
Pennsylvania smartweed |
Polygonum pensylvanicum |
inflorescence. |
| 5387588 |
Pennsylvania smartweed |
Polygonum pensylvanicum |
node with ocrea. |
| 5387591 |
swamp smartweed |
Persicaria hydropiperoides |
inflorescence. |
| 5386709 |
moss vervain |
Glandularia pulchella |
flowering stem. |
| 5387441 |
purple loosestrife |
Lythrum salicaria |
inflorescence post-flowering. |
| 5387443 |
purple loosestrife |
Lythrum salicaria |
node with whorled leaf arrangement. |
| 5387439 |
purple loosestrife |
Lythrum salicaria |
inflorescence. |
| 5387440 |
purple loosestrife |
Lythrum salicaria |
flower. |
| 5387433 |
pennyroyal |
Mentha pulegium |
inflorescence. |
| 5387059 |
paleseed plantain |
Plantago virginica |
plant. |
| 5387061 |
paleseed plantain |
Plantago virginica |
flowering stem. |
| 5387045 |
buckhorn plantain |
Plantago lanceolata |
flowering stem. |
| 5387023 |
buttercup oxalis |
Oxalis pes-caprae |
flowers. |
| 5387008 |
common evening-primrose |
Oenothera biennis |
flowering stem. |
| 5386930 |
arrowleaf sida |
Sida rhombifolia |
flower and leaves. |
| 5386908 |
little mallow |
Malva parviflora |
mature fruit. |
| 5386907 |
little mallow |
Malva parviflora |
flower and fruit. |
| 5386898 |
common mallow |
Malva neglecta |
fruit with bracts on back. |
| 5386892 |
Venice mallow |
Hibiscus trionum |
fruit and leaf. |
| 5386896 |
common mallow |
Malva neglecta |
flower. |
| 5386897 |
common mallow |
Malva neglecta |
fruit. |
| 5386890 |
Venice mallow |
Hibiscus trionum |
flower from side angle. |
| 5386882 |
threebract loosestrife |
Lythrum tribracteatum |
flowering stem. |
| 5386885 |
velvetleaf |
Abutilon theophrasti |
flower with immature fruit. |
| 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. |
| 5386747 |
Syrian beancaper |
Zygophyllum fabago |
fruiting stem. |
| 5386748 |
Syrian beancaper |
Zygophyllum fabago |
fruit and leaves. |
| 5386745 |
Syrian beancaper |
Zygophyllum fabago |
plant with rootstalk. |
| 5386733 |
African rue |
Peganum harmala |
plant with rootstalk. |
| 5386735 |
African rue |
Peganum harmala |
fruit. |
| 5386736 |
African rue |
Peganum harmala |
leaves. |
| 5386685 |
buffalobur |
Solanum rostratum |
flowering stem. |
| 5386687 |
buffalobur |
Solanum rostratum |
fruit. |
| 5386656 |
cutleaf nightshade |
Solanum triflorum |
fruit. |
| 5386643 |
black nightshade |
Solanum nigrum |
flowering stem. |
| 5386594 |
jimsonweed |
Datura stramonium |
flowering stem. |
| 5386595 |
jimsonweed |
Datura stramonium |
fruit. |
| 5386574 |
slender speedwell |
Veronica filiformis |
flowering stems. |
| 5386573 |
slender speedwell |
Veronica filiformis |
flowering stems. |
| 5386545 |
moth mullein |
Verbascum blattaria |
flowering stem. |
| 5386522 |
dalmatian toadflax |
Linaria dalmatica ssp. dalmatica |
flowers. |
| 5386514 |
sharppoint fluvellin |
Kickxia elatine |
flower. |
| 5386486 |
field madder |
Sherardia arvensis |
whorled leaves and calyx surrounding fruit. |
| 5386438 |
sulfur cinquefoil |
Potentilla recta |
flower. |
| 5386403 |
corn buttercup |
Ranunculus arvensis |
flower and fruit. |
| 5386404 |
corn buttercup |
Ranunculus arvensis |
fruit and leaf. |
| 5386363 |
redmaids |
Calandrinia ciliata |
flower. |
| 5386356 |
red sorrel |
Rumex acetosella |
foliage. |
| 5386357 |
red sorrel |
Rumex acetosella |
female inflorescence. |
| 5386358 |
red sorrel |
Rumex acetosella |
male inflorescence. |
| 5386340 |
wild buckwheat |
Fallopia convolvulus |
flowering stem. |
| 5386330 |
oval-leaf knotweed |
Polygonum arenastrum |
flowering stem. |
| 5374989 |
perennial pepperweed |
Lepidium latifolium |
|
| 5374983 |
dwarf St. Johnswort |
Hypericum mutilum |
|
| 5374979 |
common St. Johnswort |
Hypericum perforatum |
|
| 5374967 |
Fuller's teasel |
Dipsacus sativus |
|
| 5374964 |
common teasel |
Dipsacus fullonum |
|
| 5374929 |
Japanese morningglory |
Ipomoea nil |
|
| 5374922 |
field bindweed |
Convolvulus arvensis |
Convolvulus arvensis on the left and Calstegia occidentalis on the right. |
| 5374921 |
mallow bindweed |
Convolvulus althaeoides |
|
| 5374919 |
field bindweed |
Convolvulus arvensis |
|
| 5374912 |
oppositeleaf Russian thistle |
Salsola soda |
|
| 5374896 |
clammy goosefoot |
Dysphania pumilio |
|
| 5374893 |
cutleaf goosefoot |
Chenopodium multifidum |
|
| 5374890 |
Jerusalem-oak goosefoot |
Chenopodium botrys |
|
| 5374887 |
mexicantea |
Dysphania ambrosioides |
|
| 5374884 |
Nuttall povertyweed |
Monolepis nuttalliana |
|
| 5374876 |
lambsquarters |
Chenopodium album |
|
| 5374867 |
fivehook bassia |
Bassia hyssopifolia |
|
| 5374859 |
garden orach |
Atriplex hortensis |
|
| 5374849 |
bladder campion |
Silene vulgaris |
|
| 5374845 |
nightflowering catchfly |
Silene noctiflora |
|
| 5374839 |
English catchfly |
Silene gallica |
|
| 5374837 |
bouncingbet |
Saponaria officinalis |
|
| 5374826 |
Boccone's sandspurry |
Spergularia bocconii |
|
| 5374805 |
marijuana |
Cannabis sativa |
|
| 5374786 |
hedge mustard |
Sisymbrium officinale |
|
| 5374780 |
London rocket |
Sisymbrium irio |
|
| 5374775 |
tumble mustard |
Sisymbrium altissimum |
|
| 5374770 |
shortpod mustard |
Hirschfeldia incana |
|
| 5374757 |
mouse-ear cress |
Arabidopsis thaliana |
|
| 5374747 |
yellow fieldcress |
Rorippa sylvestris |
|
| 5374743 |
radish |
Raphanus sativus |
|
| 5374738 |
wild radish |
Raphanus raphanistrum |
|
| 5374733 |
Virginia pepperweed |
Lepidium virginicum |
|
| 5374724 |
clasping pepperweed |
Lepidium perfoliatum |
|
| 5374697 |
lesser swinecress |
Coronopus didymus |
|
| 5374690 |
hairy whitetop |
Cardaria pubescens |
|
| 5374686 |
hoary cress |
Lepidium draba |
|
| 5374674 |
shepherd's-purse |
Capsella bursa-pastoris |
|
| 5374672 |
Indian mustard |
Brassica juncea |
|
| 5374669 |
African mustard |
Brassica tournefortii |
|
| 5374663 |
birdsrape mustard |
Brassica rapa |
|
| 5374646 |
yellow rocket |
Barbarea vulgaris |
|
| 5374634 |
broadleaf forget-me-not |
Myosotis latifolia |
|
| 5374631 |
clasping heliotrope |
Heliotropium amplexicaule |
|
| 5374628 |
European heliotrope |
Heliotropium europaeum |
|
| 5374625 |
seaside heliotrope |
Heliotropium curassavicum |
|
| 5374622 |
pine echium |
Echium pininana |
|
| 5374619 |
salvation jane |
Echium plantagineum |
|
| 5374610 |
houndstongue |
Cynoglossum officinale |
|
| 5374594 |
spiny cocklebur |
Xanthium spinosum |
|
| 5374578 |
common tansy |
Tanacetum vulgare |
|
| 5374574 |
feverfew |
Tanacetum parthenium |
|
| 5374567 |
spiny sowthistle |
Sonchus asper |
Sonchus oleraceus on the left and S. asper on the right. |
| 5374560 |
blessed milkthistle |
Silybum marianum |
|
| 5374555 |
redpurple ragwort |
Senecio elegans |
|
| 5374536 |
bull cottonthistle |
Onopordum tauricum |
|
| 5374529 |
tall lettuce |
Lactuca canadensis |
|
| 5374527 |
bitter lettuce |
Lactuca virosa |
|
| 5374517 |
willowleaf lettuce |
Lactuca saligna |
|
| 5374509 |
hairy cat's ear |
Hypochaeris radicata |
|
| 5374505 |
smooth cat's ear |
Hypochaeris glabra |
|
| 5374502 |
stinkwort |
Dittrichia graveolens |
|
| 5374498 |
threeray tarweed |
Hemizonia lobbii |
|
| 5374490 |
orange hawkweed |
Hieracium aurantiacum |
|
| 5374487 |
telegraphplant |
Heterotheca grandiflora |
|
| 5374479 |
Fitch's tarweed |
Hemizonia fitchii |
|
| 5374450 |
hairy galinsoga |
Galinsoga quadriradiata |
|
| 5374443 |
Australian burnweed |
Erechtites minimus |
|
| 5374426 |
common crupina |
Crupina vulgaris |
|
| 5374427 |
common crupina |
Crupina vulgaris |
|
| 5374421 |
bristly hawksbeard |
Crepis setosa |
|
| 5374416 |
smooth hawksbeard |
Crepis capillaris |
|
| 5374412 |
Mexican brassbuttons |
Cotula mexicana |
|
| 5374409 |
tall fleabane |
Conyza floribunda |
|
| 5374406 |
Coulter's horseweed |
Laennecia coulteri |
|
| 5374398 |
hairy fleabane |
Conyza bonariensis |
|
| 5374388 |
wavyleaf thistle |
Cirsium undulatum |
rosette |
| 5374382 |
Canada thistle |
Cirsium arvense |
young sprout from rhizome |
| 5374371 |
rush skeletonweed |
Chondrilla juncea |
|
| 5374353 |
alpine knapweed |
Centaurea nigrescens |
|
| 5374363 |
sulphur knapweed |
Centaurea sulphurea |
|
| 5374357 |
Malta starthistle |
Centaurea melitensis |
|
| 5374348 |
North African knapweed |
Centaurea diluta |
|
| 5374346 |
cornflower |
Centaurea cyanus |
|
| 5374343 |
squarrose knapweed |
Centaurea virgata |
|
| 5374333 |
diffuse knapweed |
Centaurea diffusa |
|
| 5374330 |
diffuse knapweed |
Centaurea diffusa |
white and purple form |
| 5374312 |
musk thistle |
Carduus nutans |
|
| 5374307 |
spiny plumeless thistle |
Carduus acanthoides |
|
| 5374164 |
wild celery |
Cyclospermum leptophyllum |
|
| 5374160 |
toothpick ammi |
Ammi visnaga |
|
| 5374127 |
low amaranth |
Amaranthus deflexus |
|
| 5374254 |
western ragweed |
Ambrosia psilostachya |
|
| 5374251 |
common ragweed |
Ambrosia artemisiifolia |
|
| 5374247 |
giant ragweed |
Ambrosia trifida |
|
| 5374232 |
common yarrow |
Achillea millefolium |
|
| 5374202 |
fennel |
Foeniculum vulgare |
|
| 5374195 |
Queen Anne's lace, wild carrot |
Daucus carota |
inflorescenece and infructescence |
| 5374140 |
Powell amaranth |
Amaranthus powellii |
|
| 5374139 |
redroot pigweed |
Amaranthus retroflexus |
|
| 5371308 |
slenderflower thistle |
Carduus tenuiflorus |
flowering stems. From Weeds of California and other Western States. |
