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John M. Randall's Images

Organization: The Nature Conservancy
Unit: Wildland Invasive Species Team
Country: United States

Remove Filters: Portrait(X)

335 Images of 152 Subjects View Subject List View Image Details View Thumbnails

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Image Subject Name Scientific Name Description
5392386 Japanese stiltgrass Microstegium vimineum Illustration
5391886 sweet vernalgrass Anthoxanthum odoratum Spikelets
5391887 sweet vernalgrass Anthoxanthum odoratum Spikelets
5164019 Mexican fireweed Kochia scoparia
1299128 giant reed Arundo donax Margarita River; Camp Pendelton, California
5341061 purple pampasgrass Cortaderia jubata
5164024 crimson fountaingrass Pennisetum setaceum
5164028 Himalaya blackberry Rubus armeniacus
5164030 Himalaya blackberry Rubus armeniacus
5341059 smooth brome Bromus inermis
5164027 Himalaya blackberry Rubus armeniacus
5341062 purple pampasgrass Cortaderia jubata close-up view of a seed plume
1624008 cheatgrass Bromus tectorum Native to the Mediterranean region, is one of the most widespread weeds in the American West.
1237090 wine raspberry Rubus phoenicolasius
5392447 banana poka Passiflora tarminiana Pretty flower I
5392448 banana poka Passiflora tarminiana Pretty flower II
5392449 banana poka Passiflora tarminiana Fruit
5391809 hemlock woolly adelgid Adelges tsugae
5392282 Japanese honeysuckle Lonicera japonica Flowers unbound!
5392497 European buckthorn Rhamnus cathartica Foliage II
5392674 gorse Ulex europaeus
5392691 tall vervain Verbena bonariensis
5392609 Spanish broom Spartium junceum
5392648 tamarisk Tamarix spp.
5392573 Chinese tallowtree Triadica sebifera
5392478 reed canarygrass Phalaris arundinacea Big infestation
5392468 reed canarygrass Phalaris arundinacea
5392474 reed canarygrass Phalaris arundinacea Close view
5392475 reed canarygrass Phalaris arundinacea Variegated leaves
5392476 reed canarygrass Phalaris arundinacea Waterside clumps
5392346 yellow sweetclover Melilotus officinalis
5392360 yellow sweetclover Melilotus officinalis
5392285 Amur honeysuckle Lonicera maackii
5392212 mouse barley Hordeum murinum Grassy knoll
5392181 French broom Genista monspessulana One plant...
5392167 shamel ash Fraxinus uhdei
5392139 Sydney bluegum Eucalyptus saligna
5392138 Sydney bluegum Eucalyptus saligna
5392117 air-potato Dioscorea bulbifera
5392015 southern catalpa Catalpa bignonioides
5392016 catalpa Catalpa spp. Landscape tree
5392022 buffelgrass Pennisetum ciliare
5392006 carpobrotus Carpobrotus spp. Cliff edge
5391981 heather Calluna vulgaris
5391955 red brome Bromus rubens A greenish seed head
5391954 red brome Bromus rubens A red seed head
5391835 tree-of-heaven Ailanthus altissima
5391910 giant reed Arundo donax
5391873 bluestem Andropogon gayanus Inflorescence
5392723 calla lily Zantedeschia aethiopica
5392715 calla lily Zantedeschia aethiopica Lily
5392716 calla lily Zantedeschia aethiopica Many lilies
5392709 spiny cocklebur Xanthium spinosum Spiny branch
5392710 spiny cocklebur Xanthium spinosum Veined leaves
5392713 common cocklebur Xanthium strumarium Fruiting branch
5392699 common mullein Verbascum thapsus With weed scientist's children
5392694 common mullein Verbascum thapsus Close-up of flowers
5392692 common mullein Verbascum thapsus Large flowering plants
5392693 common mullein Verbascum thapsus A first-year rosette
5392685 spreading liverseed grass Urochloa decumbens Flowers
5392688 moth mullein Verbascum blattaria White flower
5392689 moth mullein Verbascum blattaria Yellow flower
5392679 gorse Ulex europaeus Juvenile plants
5392681 Siberian elm Ulmus pumila Leaves and bark
5392682 Siberian elm Ulmus pumila Leaves
5392668 puncturevine Tribulus terrestris Matted plants
5392656 Australian redcedar Toona ciliata
5392659 western salsify Tragopogon dubius Inflorescence
5392660 western salsify Tragopogon dubius
5392654 princess-flower Tibouchina urvilleana
5392641 tamarisk Tamarix spp. Flower clusters
5392633 saltcedar Tamarix ramosissima
5392626 smallflower tamarisk Tamarix parviflora Many flowers
5392629 smallflower tamarisk Tamarix parviflora Streamside
5392620 medusahead Taeniatherum caput-medusae In the field
5392621 medusahead Taeniatherum caput-medusae Matted plants
5392610 Spanish broom Spartium junceum Young fruit
5392612 Spanish broom Spartium junceum Flowers close-up
5392605 smooth cordgrass Spartina alterniflora Mudflat
5392606 smooth cordgrass Spartina alterniflora Dense plants
5392601 perennial sowthistle Sonchus arvensis Flowering plants
5392589 blessed milkthistle Silybum marianum Prickly plants
5392581 Brazilian peppertree Schinus terebinthifolius
5392582 Brazilian peppertree Schinus terebinthifolius Sterile understory
5392583 Brazilian peppertree Schinus terebinthifolius Fruiting branch
5392584 tansy ragwort Senecio jacobaea Flowering plant
5392585 tansy ragwort Senecio jacobaea Foreground weeds
5392587 red sesbania Sesbania punicea Flowering branch
5392575 Peruvian peppertree Schinus molle Fruiting branch
5392578 Mediterranean grass Schismus spp. On desert floor
5392567 bouncingbet Saponaria officinalis In dunes
5392568 Chinese tallowtree Triadica sebifera Catkin
5392569 Chinese tallowtree Triadica sebifera Young tree
5392570 Chinese tallowtree Triadica sebifera Green leaves
5392564 bouncingbet Saponaria officinalis Pretty flowers
5392565 bouncingbet Saponaria officinalis Whole plant
5392557 curly dock Rumex crispus In slough
5392555 curly dock Rumex crispus Inflorescence
5392556 curly dock Rumex crispus
5392547 highbush blackberry Rubus argutus
5392550 wine raspberry Rubus phoenicolasius
5392540 Himalaya blackberry Rubus armeniacus Big plant
5392545 highbush blackberry Rubus argutus Fruit
5392537 Himalaya blackberry Rubus armeniacus
5392538 Himalaya blackberry Rubus armeniacus
5392527 black locust Robinia pseudoacacia Dried pods
5392519 black locust Robinia pseudoacacia Flowers
5392520 black locust Robinia pseudoacacia More flowers
5392522 black locust Robinia pseudoacacia Tree bark
5392524 black locust Robinia pseudoacacia Young tree
5392525 black locust Robinia pseudoacacia Lone tree
5392513 castorbean Ricinus communis Flowers
5392515 castorbean Ricinus communis Oceanside
5392516 bloodberry Rivina humilis Leaves and fruit
5392511 rose myrtle Rhodomyrtus tomentosa Shrubs
5392507 glossy buckthorn Frangula alnus Seedlings &
5392504 glossy buckthorn Frangula alnus Fruit...
5392505 glossy buckthorn Frangula alnus Twigs
5392494 European buckthorn Rhamnus cathartica Foliage I
5392495 European buckthorn Rhamnus cathartica Fruit I
5392490 lesser celandine, fig buttercup Ficaria verna Many flowers
5392491 lesser celandine, fig buttercup Ficaria verna Streamside
5392493 radish Raphanus sativus Bad foliage
5392489 lesser celandine, fig buttercup Ficaria verna In forest
5392480 timothy Phleum pratense Near a tyke
5392481 timothy Phleum pratense Close view
5392471 reed canarygrass Phalaris arundinacea Young flowers
5392473 reed canarygrass Phalaris arundinacea Anthesis
5392466 crimson fountaingrass Pennisetum setaceum
5392459 crimson fountaingrass Pennisetum setaceum Invading palms
5392460 crimson fountaingrass Pennisetum setaceum Inflorescence
5392455 princesstree Paulownia tomentosa Flowers
5392443 corkystemmed passionflower Passiflora suberosa
5392444 corkystemmed passionflower Passiflora suberosa
5392445 corkystemmed passionflower Passiflora suberosa
5392434 wild parsnip Pastinaca sativa Yellow flowered plant
5392439 passionflower Passiflora spp. In bud
5392425 skunk-vine Paederia foetida Fruit
5392430 yellow glandweed Parentucellia viscosa Plants
5392431 yellow glandweed Parentucellia viscosa
5392416 Scotch thistle Onopordum acanthium
5392415 Scotch thistle Onopordum acanthium With scientist
5392413 Scotch thistle Onopordum acanthium Bolting plants
5392411 Scotch thistle Onopordum acanthium Few rosettes
5392407 tree tobacco Nicotiana glauca
5392391 white mulberry Morus alba Glossy leaves
5392385 Japanese stiltgrass Microstegium vimineum Leaves
5392378 miconia Miconia calvescens Leaf, upper side
5392379 miconia Miconia calvescens Leaf, underside
5392382 Japanese stiltgrass Microstegium vimineum Along a trail
5392372 Spanish arborvine Merremia tuberosa Pretty plants and flowers
5392376 miconia Miconia calvescens young tree
5392370 pennyroyal Mentha pulegium Flowers
5392369 pennyroyal Mentha pulegium Flowers I
5392357 molassesgrass Melinis minutiflora Inflorescence
5392359 molassesgrass Melinis minutiflora Red flowers
5392353 chinaberry Melia azedarach Sapling
5392355 molassesgrass Melinis minutiflora Plants
5392348 chinaberry Melia azedarach
5392345 yellow sweetclover Melilotus officinalis
5392343 white horehound Marrubium vulgare
5392344 yellow sweetclover Melilotus officinalis
5392324 Japanese climbing fern Lygodium japonicum Climbing trees
5392327 old world climbing fern Lygodium microphyllum Infestation!
5392320 yellow bush lupine Lupinus arboreus
5392315 yellow bush lupine Lupinus arboreus Flower
5392300 exotic bush honeysuckles Lonicera spp.
5392291 Morrow's honeysuckle Lonicera morrowii Bush
5392292 exotic bush honeysuckles Lonicera spp. Fruiting branch
5392293 exotic bush honeysuckles Lonicera spp. Fruiting branch
5392275 yellow toadflax Linaria vulgaris In flower
5392276 yellow toadflax Linaria vulgaris In fruit
5392280 Japanese honeysuckle Lonicera japonica
5392271 broomleaf toadflax Linaria genistifolia More flowers
5392272 yellow toadflax Linaria vulgaris A few flowers
5392273 yellow toadflax Linaria vulgaris
5392274 yellow toadflax Linaria vulgaris
5392268 broomleaf toadflax Linaria genistifolia Mountain meadow
5392270 broomleaf toadflax Linaria genistifolia
5392260 white leadtree Leucaena leucocephala Big seed pods!
5392261 white leadtree Leucaena leucocephala Tree in a thicket
5392253 perennial pepperweed Lepidium latifolium Bill Neill with uprooted plant
5392254 sericea lespedeza Lespedeza cuneata Shoot and leaves
5392242 Mexican fireweed Kochia scoparia Flowers
5392243 prickly lettuce Lactuca serriola One plant
5392244 prickly lettuce Lactuca serriola A few plants
5392240 Mexican fireweed Kochia scoparia
5392225 cogongrass Imperata cylindrica Infestation in slash pine
5392226 satintail Imperata spp.
5392224 cogongrass Imperata cylindrica
5392214 Japanese hop Humulus japonicus Leafy plant
5392207 common velvetgrass Holcus lanatus Inflorescence
5392208 common velvetgrass Holcus lanatus Inflorescence
5392210 common velvetgrass Holcus lanatus Many plants
5392211 common velvetgrass Holcus lanatus Lot's o inflorescences
5392202 hiptage Hiptage benghalensis Plant
5392200 common tarweed Centromadia pungens ssp. pungens Bolting
5392201 common tarweed Centromadia pungens ssp. pungens Skeletons
5392194 common tarweed Centromadia pungens ssp. pungens Skeletons
5392196 common tarweed Centromadia pungens ssp. pungens From overhead
5392186 Kahila garland-lily Hedychium gardnerianum Fruiting stalk
5392187 Kahila garland-lily Hedychium gardnerianum Flower
5392188 Kahila garland-lily Hedychium gardnerianum Flower
5392172 freesia Freesia spp. White flower
5392173 white ramping fumitory Fumaria capreolata Leaves and flower
5392168 shamel ash Fraxinus uhdei Trunks
5392164 shamel ash Fraxinus uhdei
5392150 edible fig Ficus carica Muddy resprouts
5392151 edible fig Ficus carica
5392147 tall fescue Festuca arundinacea Inflorescence
5392148 tall fescue Festuca arundinacea Plant
5392149 tall fescue Festuca arundinacea
5392145 leafy spurge Euphorbia esula A small clump
5392135 Tasmanian bluegum Eucalyptus globulus Fruit and flowers
5392122 pride of Madeira Echium candicans Tall spike
5392123 pride of Madeira Echium candicans Short spike
5392128 Russian-olive Elaeagnus angustifolia
5392121 pride of Madeira Echium candicans
5392114 cape ivy Delairea odorata Tree draperies
5392115 air-potato Dioscorea bulbifera A climbing plant
5392116 air-potato Dioscorea bulbifera Aerial bulbil
5392103 dog-strangling vine, European swallowwort Cynanchum rossicum Infestation
5392104 dog-strangling vine, European swallowwort Cynanchum rossicum
5392105 dog-strangling vine, European swallowwort Cynanchum rossicum Leaves and fruit
5392096 houndstongue Cynoglossum officinale
5392097 houndstongue Cynoglossum officinale
5392098 houndstongue Cynoglossum officinale Inflorescence
5392099 houndstongue Cynoglossum officinale Roots!
5392100 dog-strangling vine, European swallowwort Cynanchum rossicum Reaching into a tree
5392087 montbretia Crocosmia x crocosmiiflora
5392077 purple pampasgrass Cortaderia jubata Close up view of a seed plume
5392080 purple pampasgrass Cortaderia jubata
5392081 purple pampasgrass Cortaderia jubata
5392082 purple pampasgrass Cortaderia jubata
5392074 purple pampasgrass Cortaderia jubata A grand plant with plumes
5392064 Asian nakedwood Colubrina asiatica A bad infestation
5392057 bull thistle Cirsium vulgare White-flowered variant
5392058 bull thistle Cirsium vulgare Many prickly plants
5392060 bull thistle Cirsium vulgare Single flower
5392055 bull thistle Cirsium vulgare Weed in the mountains
5392050 Canada thistle Cirsium arvense
5392045 Canada thistle Cirsium arvense Seedheads
5392048 Canada thistle Cirsium arvense Plants
5392042 yellow starthistle Centaurea solstitialis Q-tip stage
5392039 yellow starthistle Centaurea solstitialis A large plant
5392028 spotted knapweed Centaurea stoebe ssp. micranthos Big plant
5392017 oriental bittersweet Celastrus orbiculatus The plant
5392018 oriental bittersweet Celastrus orbiculatus Leaves
5392020 oriental bittersweet Celastrus orbiculatus Climbing a tree
5392014 southern catalpa Catalpa bignonioides Leaves
5392010 Australian-pine Casuarina equisetifolia A close-up of fruit
5392012 Australian-pine Casuarina equisetifolia In a grove of trees
5392003 Italian plumeless thistle Carduus pycnocephalus Flowers
5392004 Italian plumeless thistle Carduus pycnocephalus A plant
5392001 papaya Carica papaya Small plant
5391995 musk thistle Carduus nutans Mature plant
5391996 musk thistle Carduus nutans Mature plant
5391999 musk thistle Carduus nutans
5391989 hoary cress Lepidium draba Mature plant
5391991 hoary cress Lepidium draba Single plant
5391994 musk thistle Carduus nutans Flowerhead I
5391984 Siberian peashrub Caragana arborescens Plant close-up
5391966 butterflybush Buddleja davidii
5391967 butterflybush Buddleja davidii Flower
5391968 butterflybush Buddleja davidii Foreground plant
5391971 flowering rush Butomus umbellatus Inflorescence
5391960 cheatgrass Bromus tectorum Hillside horror infestation
5391961 cheatgrass Bromus tectorum Dangly fruit
5391965 butterflybush Buddleja davidii Flowers
5391957 cheatgrass Bromus tectorum A plant making seed
5391947 smooth brome Bromus inermis Close-up of seedhead
5391948 smooth brome Bromus inermis Full view of panicle
5391950 smooth brome Bromus inermis Impetuous anthers
5391943 mustard Brassica spp. Flowers
5391945 soft brome Bromus hordeaceus Florets at anthesis
5391946 soft brome Bromus hordeaceus More florets
5391937 beardgrass Bothriochloa spp. Inflorescence
5391924 wild oat Avena fatua Raceme
5391926 wild oat Avena fatua Raceme
5391928 hoary alyssum Berteroa incana Large patch
5391923 Australian saltbush Atriplex semibaccata Large plants
5391919 onionweed Asphodelus fistulosus A few flowers
5391920 onionweed Asphodelus fistulosus A bunch of plants
5391915 giant reed Arundo donax Stalking Mandy
5391909 giant reed Arundo donax Along a river
5391914 giant reed Arundo donax Woody shoots!
5391905 giant reed Arundo donax Mountainside
5391907 giant reed Arundo donax Leaf sheaths
5391903 giant reed Arundo donax It is big!
5391897 common burdock Arctium minus Flowering stalk
5391891 Japanese angelica tree Aralia elata Tree
5391892 Japanese angelica tree Aralia elata Leaf
5391896 great burdock Arctium lappa Plantlet
5391884 stinking chamomile Anthemis cotula Flowers
5391885 stinking chamomile Anthemis cotula Plants
5391877 broomsedge bluestem Andropogon virginicus A big clump
5391881 bur chervil Anthriscus caucalis Fruit
5391874 broomsedge bluestem Andropogon virginicus Plant
5391875 broomsedge bluestem Andropogon virginicus An infestation
5391876 broomsedge bluestem Andropogon virginicus Fruit
5391869 common bugloss Anchusa officinalis Flowers
5391870 common bugloss Anchusa officinalis Single plant
5391867 Amur peppervine Ampelopsis brevipedunculata Heavy clump
5391868 common bugloss Anchusa officinalis Flowers
5391855 European beachgrass Ammophila arenaria Flowers
5391858 European beachgrass Ammophila arenaria Big bunch
5391860 European beachgrass Ammophila arenaria Flowers
5391849 garlic mustard Alliaria petiolata Young plant
5391845 garlic mustard Alliaria petiolata Flowering plant
5391847 garlic mustard Alliaria petiolata Young plant
5391841 camelthorn Alhagi maurorum Fruit!
5391844 garlic mustard Alliaria petiolata with fruit
5391837 camelthorn Alhagi maurorum Thorns!
5391834 tree-of-heaven Ailanthus altissima Bold tree
5391829 tree-of-heaven Ailanthus altissima A few bad trees
5391831 tree-of-heaven Ailanthus altissima Blighted plants
5391832 tree-of-heaven Ailanthus altissima More flowers
5391833 tree-of-heaven Ailanthus altissima Native at China's Great Wall
5391824 colonial bentgrass Agrostis capillaris
5391825 crested wheatgrass Agropyron cristatum Seedheads
5391826 crested wheatgrass Agropyron cristatum Closer shot of a seedhead
5391827 desert wheatgrass Agropyron desertorum Ominous seedhead
5391828 tree-of-heaven Ailanthus altissima Characteristic leaf scars
5391819 croftonweed Ageratina adenophora Flowers gone by
5391816 croftonweed Ageratina adenophora Single plant
5391818 croftonweed Ageratina adenophora
5391803 Russian knapweed Rhaponticum repens Nice flower
5391801 Russian knapweed Rhaponticum repens
5391802 Russian knapweed Rhaponticum repens
5391794 Sycamore maple Acer pseudoplatanus Leaves, see them plot
5391795 Russian knapweed Rhaponticum repens A young flower
5391796 Russian knapweed Rhaponticum repens A seedhead
5391797 Russian knapweed Rhaponticum repens Conniving foliage
5391791 Norway maple Acer platanoides Milky sap
5341054 camelthorn Alhagi maurorum fruiting

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