GUIDE TO POISONOUS PLANTS
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Complete List of Plants
141 Plants matching your search criteria found.
Common Name
Botanic Name
Plant Image
Map
Adonis, Summer pheasants eye
Adonis species (A.aestivalis, A. annua, A. vernalis) Synonym (ITIS) Adonis aestivalis var. citrina Hoffm., Adonis autumnalis L., Chrysocyathus vernalis (L.) Holub
Alsike clover
Trifolium hybridum (ITIS) Trifolium elegans Savi, Trifolium hybridum ssp. elegans (Savi) Asch. & Graebn., Trifolium hybridum var. elegans (Savi) Boiss.,Trifolium hybridum var. pratense Rabenh.)
Angel's trumpet
Brugmansia species, Brugmansia Pers. (USDA, ITIS) Synonyms: Datura candida (Pers.) Saff., Brugmansia arborea auct. non (L.) Steud., Datura arborea L. , Brugmansia candida Pers.
Arrow grass, pod grass, goose grass
Triglochin maritima, Triglochin maritima L. (USDA, ITIS) Triglochin palustris
Autumn crocus, meadow saffron
Colchicum autumnale, Colchicum autumnale L. (ITIS, USDA)
Avocado
Persea americana Mill. (USDA, ITIS), Synonyms: Persea gratissima C.F. Gaertn., Laurus persea L., Persea nubigena L.O. Williams, Persea persea (L.) Cockerell
No Image Available
Baccharis, Desert broom, false willow, silverling, yerba manza, yerba de pasmo
Baccharis spp.
Baneberry
Actaea rubra
Bindweed, wild morning-glory
Convolvulus arvensis
Bitterweeds, rubberweed, Pingue
Hymenoxys
Black Henbane, hogs bean
Hyoscyamus niger L.
Black Locust, locust, false acacia
Robinia pseudoacacia
Black walnut
Juglans nigra
Blue Flax, common flax.
Linum perenne L. (an introduced species that is common and invasive) Linum lewisii Pursh (native species). Linum usitatissimum L. (introduced species)
Bouncing bet, Soapweed
Saponaria officinalis L.
Bracken fern, brake fern, eagle fern
Pteridium aquilinum L. Kuhn
Buckeye, horse chestnut
Aesculus spp.
Buckwheat
Fagopyrum esculentum Moench
Buffalo bur, Kansas thistle, duraznillo
Solanum rostratum Dunal
Burdock, lesser burdock, burweed
Arctium L.
Buttercup, crowsfoot
Ranunculus spp. Among the buttercups considered more toxic to animals than others are R. scleratus, R. flammula, R. parviflora, R. acris, R. abortivus, R. repens, R. cymbalaria, and R. testiculatus
Cala lily, arum lily, pig lily, lirio calla
Zantedeschia aethiopica ( 6 species)
No Map Available
Carolina jessamine, yellow jessamine, evening trumpet vine
Gelsemium sempervirens (L.)
Castor bean, castor oil plant, higuerilla, palma Christi
Ricinus communis L.
China berry, Persian lilac, white cedar, Texas umbrella tree
Melia azedarach L.
No Map Available
Chinese Tallow tree, Popcorn tree, Florida aspen, white wax berry
Triadica sebifera (Sapium sebiferum)
No Image Available
No Map Available
Choke cherry
Prunus virginiana L.
Clematis, Virgin's bower, traveller's joy, leather flower
Clematis L. (200 species)
Cocklebur
Xanthium L.
Colorado Rubber Weed, Pingue, Bitterweed
Hymenoxys richardsonii (hook.) Cockerell Hymenoxys odorata
Coontie, Sago palm, chamal, coyolillo
Zamia pumila L., Zamia integrifolia L. f.
Cow cockle, spring cockle, dairy pink, cow soapwort
Vaccaria hispanica (Mill.) Rauschert
No Image Available
Crotalaria, rattlepod
Crotalaria spectabilis Roth
Crown vetch
Securigera varia (L.) Lassen Coronilla varia
Curly leafed dock, sorrel, Winged Dock
Rumex crispus L. Rumex venosus Pursh
Day blooming jasmine, night blooming jasmine, Cestrum, Day blooming jessamine
Cestrum L.
Death Camas
Zigadenus Michx.
Desert Baileya
Baileya multiradiataÃÂ Harv. & A. Gray ex A. Gray
Dogbane, Indian hemp.
Apocynum cannabinum L.
Elderberry
Sambucus L.
False-hellebore, Skunk cabbage, corn-lily.
Veratrum californicum Durand. American false hellebore (V. viride) is the most common and is found in most northern States from East to West including Canada. Others species include V. alblum
Fiddleneck, tarweed, yellow bur weed
Amsinckia menziesii
Flatweed, cat's ears, false dandelion
Hypochaeris radicata L.
Flixweed
Descurainia sophia (L.) Webb ex Prantl
Fly Poison, Staggergrass
Amianthium muscaetoxicum (Walter) A. Gray
Foothills Larkspur
Delphinium geyeri Green
Foxglove
Digitalis purpurea L.
Fringed sage, sagewort
Artemesia frigida Willd.
Goats Rue, professor weed, French lilac
Galega officinalis L.
Golden banner, yellow pea, false lupine
Thermopsis montana Nutt.
Golden chain tree
Laburnum anagyroides Medik.
Greasewood, chico
Sarcobatus vermiculatus (Hook.) Torr.
Ground cherry, Chinese lantern
Physalis L.
Gum weed, Resinweed
Grindelia squarrosa (Pursh) Dunal
Hairy Vetch
Vicia villosa
No Map Available
Halogeton, bavilla
Halogeton glomeratus (M.Bieb.) C.A. Mey
Hemlock, poison hemlock, spotted hemlock.
Conium maculatum L.
Hoary alyssum
Berteroa incana (L.) DC.
Horse chestnut, buckeyes
Aesculus species
Horse nettle, Carolina horse nettle, bull nettle
Solanum carolinense L.
Horsebrush, spineless horse brush, little leaf horse brush
Tetradymia canescens DC. Tetradymia glabrata Torr. & A. Gray
Horsetails, scouring rush
Equisetum arvense L.
Hound's Tongue, beggar's lice, dog's tongue, sheep bur, dog bur, glovewort, and woolmat.
Cynoglossum officinale L.
Japanese Pieris
Pieris japonica (Thunb.) D. Don ex G. Don
Jimmy weed, burrow weed, rayless goldenrod
Isocoma pluriflora (Torr. & A. Gray) Greene (Haplopappus heterophyllus, Iscoma wrightii, Aplopappus)
Jimson weed, Thorn apple
Datura stramonium L.
Johnson grass
Sorghum halepense (L.) Pers.
Kentucky coffee tree
Gymnocladus dioicus (L.) K. Koch
Kochia weed, Mexican fire weed, summer cypress, morenita
Bassia scoparia (Kochia scoparia)
Lamb's Quarter
Chenopodium L.
Lantana
Lantana camara L.
Larkspur
Delphinium barbeyi (Huth) Huth. There are several similar species of tall larkspur, the most common of which are D. glaucescens, and D. occidentale.
Laurel , mountain laurel, calico bush
Kalmia L.
Leafy Spurge
Euphorbia esula L.
Leucaena, Whitelead tree, Guaje, Huaxin, Koa haole
Leucaena leucocephala (Lam.) de Wit
Lily of the Nile, Agapanthus Lily, African blue lily
Agapanthus africanus (L.) Hoffsgg.
Lily of the valley
Convallaria majalis L.
Lily, Easter lily, Asiatic lily, tiger lily
Lilium L.
Locoweed, white point-locoweed, crazy weed
Oxytropis sericea Nutt.
Low larkspur, foot-hills larkspur and plains larkspur
Delphinium nuttallianum Pritz ex Walp., D. andersonii A. Gray, D. bicolor Nutt. (low larkspur). Delphinium geyeri Greene (Foot-hills larkspur), Delphinium carolinianum Walter (Plains larkspur)
Lupine, blue bonnet
Lupinus L. species (100 species in North America)
May apple
Podophyllum peltatum L.
Milkweed
Asclepias l. species
Monkshood, Aconite
Aconitum L. species
Mountain mahogony
Cercocarpus montanus Raf.
Nandina, heavenly bamboo, Chinese heavenly bamboo.
Nandina domestica Thunb.
Narcissus, daffodil, paper white
Narcissus L. species
Nightshade, black nightshade, deadly nightshade.
Solanum nigrum L.
Nolina, bear grass,sacahuiste, bunch grass
Nolina texana
Oak, Gambel's oak, Shinnery oak
Quercus gambelii Nutt.
Oleander, rose laurel
Nerium oleander L.
Onions, wild onions, domestic onions
Allium L.
Orange Sneezeweed
Dugaldia hoopesii (Helenium hoopesii) New Name Hymenoxys hoopesii
Oxalis, wood sorrel, soursob, creeping oxalis,
Oxalis spp.
Paintbrush, Indian Paintbrush
Castilleja species
Penstemon, beard tongue
Penstemon species
Perilla mint, beafsteak plant, mint weed
Perilla frutescens
Pig weed, amaranth
Amaranthus retroflexus
Poinsettia
Euphorbia pulcherrima
Poison ivy
Toxicodendron radicans (L.) Kuntze
Poison sumac
Toxicodendron vernix (L.) Kuntze
Ponderosa pine
Pinus ponderosa Lawson & C. Lawson
Prince's plume
Stanleya pinnata (Pursh) Britton
Puncture vine, goats head, caltrop.
Tribulus terrestris L.
Purple locoweed, Lambert's crazy weed
Oxytropis lambertii Pursh
Purslane, pusley
Portulaca L.
Rain lily, atamasco lily, fairy lily, prairie lily
Zephyranthes atamasco
Red Clover
Trifolium pratense L.
Red Maple
Acer rubrum L.
Rhododendron
Rhododendron L.
Russian knapweed
Acroptilon (Centaurea) repens; Acroptilon repens L.; Rhaponticum repens (L.) Hidalgo
Russian thistle, tumble weed
Salsola kali L.
Sacred Datura, Tolguacha, angel's trumpet, pricklyburr
Datura metaeloides; Datura inoxia Mill.; Datura discolor Bernh.
Salt bush
Atriplex spp.: Atriplex L.
Sand sage
Artemisia filifolia Torr. (Absinthium species)
Sandbur
Cenchrus longispinus (Hack.) Fernald
Scotch Broom
Cytisus scoparius (L.) Link
Senecio, groundsel, tansy ragwort
Senecio species: Senecio L.
Service berry, Saskatoon berry, June berry
Amelanchier alnifolia, (A. humilis): Amelanchier alnifolia (Nutt.) Nutt. ex M. Roem.
Silverleaf night shade, trompillo
Solanum elaeagnifolium Cav.
Snakeweed, broomweed, turpentine weed.
Gutierrezia sarothrae (Pursh) Britton & Rusby
Sneezeweeds, bitterweed
Helenium L. species
Snow on the Mountain
Euphorbia marginata Pursh
Sophora, Texas mountain laurel, mescal bean, coral bean, Frijollito
Sophora (Ortega) Lag. ex DC.
Spotted or blue locoweed
Astragalus lentiginosus Douglas ex Hook
St. John's wort, Klamath weed, goat weed, tipton weed
Hypericum perforatum L.
Suckleya, poison suckleya
Suckleya suckleyana (Torr.) Rydb.
Sudan grass
Sorghum bicolor (L.) Moench
Tansy mustard
Descurainia pinata (Walter) Britton
Tree tobacco
Nicotiana glauca Graham
Two-grooved milk vetch
Astragalus bisulcatus (Hook.) A. Gray
Vipers's bugloss, blueweed
Echium vulgare L.
Virginia creeper, woodbine
Parthenocissus quinquefolia (L.) Planch.
Water Hemlock, spotted water Hemlock
Cicuta douglasii (DC.) J.M. Coult. & Rose,
White snakeroot, Rich weed, white sanicle, white top, squaw weed,
Ageratina altissima (L.) R.M. King & H. Rob.
Woody Aster
Xylorrhiza glabriuscula Nutt.
Woolly Locoweed
Astragalus mollissimus Torr.
Yellow Oleander, 'Be-still tree', Lucky nut
Thevetia peruviana (Pers.) K. Schum., Thevetia thevetioides (Kunth) Schum.
Yellow star thistle, St Barneby's thistle
Centaurea solstitialis L.
Yellow sweet clover, white sweet clover
Melilotus officinalis (L.) Lam.
Yew
Taxus spp.
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