Douglas Island Veterinary Service
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 Castor Bean, Ricinus communis

 

Foxglove, Digitalis purpurea

 

Water Hemlock

 

LISTING OF POISONOUS PLANTS
Remember, just because a species is on this list does not mean that it can't also be a medicinal or forage plant under some circumstances, at some dose...
 
Aconite Aconitum spp
Alfalfa or Lucerne Medicago sativa
Alsike Clover Trifolium spp
Alsike Clover, Red Clover, White Clover Trifolium spp
Angel's Trumpet Datura spp
Arrowgrass Triglochin maritima
Baneberry Actaea spp
Belladonna Atropa belladonna
Birdsfoot Trefoil Lotus corniculatus
Black Locust Robinia pseudoacacia
Bleeding Heart Dicentra spp
Bloodroot Sanquinaria canadensis
Bouncing Bet Saponaria spp
Bracken Fern Pteridium aquilinium
Buckeye Aesculus spp
Buckwheat Fagoypyrum esculentum
Buffalo Bur Solanum spp
Buttercups or Crowfoot Ranunculus spp
Castor Bean Ricinus communis
Celandine Chelidonium majus
Christmas Rose Helleborus niger
Cocklebur Xanthium strumarium
Corn Cockle Agrostemma githago
Corn Lily, False Hellbore Veratrum californicum
Cow Cockle Saponaria spp
Creeping Charlie Glechoma spp
Crown Vetch Coronilla varia
Cherries, Black Cherry, Bitter Cherry, Choke Cherry, and Pin Cherry Prunus spp
Daphne Daphne spp
Death Angel Mushrooms Amanita spp
Death Camas Zigadenus spp
Death Cap Mushrooms Amanita spp
Delphiniums Delphinium spp
Devil's Trumpet Datura spp
Dock Rumex spp
Dogbane Apocynum spp
Doll's-eyes Actaea spp
Downy Thornapple Datura spp
Drooping Leucothoe Leucothoe axillaris
Dutchman's Breeches Dicentra spp
Elderberry Sambucus canadensis
Ergot Claviceps spp
Fiddleneck Amsinckia intermedia
Flax Linum usitatissimum
Foxglove Digitalis purpurea
Golden Chain or Laburnum Laburnum anagyroides
Great Lobelia, Cardinal Flower, and Indian Tobacco Lobelia spp
Ground Ivy, Creeping Charlie, and Gill-over-the-Ground Glechoma spp
Groundsels,Senecio spp
Halogeton Halogeton glomeratus
Henbane Hyoscyanmus niger
Horsebrush Tetradymia spp
Horse Chestnut Aesculus spp
Horse Nettle Solanum spp
Horsetail Equisetum arvense and other spp
Irises Iris spp
Jack-in-the-Pulpit Arisaema spp
Japanese Pieris Pieris japonica and other spp
Jessamine Gelsemium sempervirens
Jimsonweed Datura spp
Johnson Grass Sorghum spp
Klamath Weed Hypericum perforatum
Lamb's Quarters Chenopodium album
Lantana, Red Sage, Yellow Sage, or West Indian Lantana Lantana camara
Larkspurs Delphinium spp
Lily-of-the-Valley Convallaria majalis
LocoweedAstragalus and Oxytropis spp
Lupine Lupinus spp
Marijuana Cannabis sativa
Marsh Marigold or Cowslip Caltha palustris
Mayapple and Mandrake Podophyllum peltatum
Mexican Poppy Argemone mexicana
Milkweed Asclepias spp
Milo Sorghum spp
Monkey Agaric Mushrooms Amanita spp
Monkshood Aconitum spp
Moonseed Menispermum canadense
Mountain Fetterbush Pieris japonica and other spp
Nightshade, Black Nightshade or Deadly Nightshade Atropa belladonna
Oak Trees Quercus spp
Oleander Nerium oleander
Onions and Chives Allium spp
Panther Cap Mushrooms Amanita spp
Pigweed Amaranthus spp
Poison Hemlock Conium maculatum
Poison ivy Toxicodendron radicans
Poison oak Toxicodendron diversiloba
Poison Sumac >Toxicodendron vernix
Potato Solanum spp
Poinsettia Euphorbia spp
Pokeweed Phytolacca americana
Ponderosa Pine Pinus ponderosa
Poppies including Opium Poppy Papaver spp
Potato Solanum spp
Prickly Poppy Argemone mexicana
Ragworts Senecio spp
Red Clover Trifolium spp
Rhubarb >Rheum rhaponticum
Rosary Pea Abrus precatorius
Saint John's Wort Hypericum perforatum
Senecio Senecio spp
Sensitive Fern Onoclea sensibis
Sierra Laurel Leucothoe davisiae
Skunk Cabbage Symplocarpus foetidus
Squirrel Corn Dicentra spp
Snow-on-the-Mountain Euphorbia spp
Sorghum Sorghum spp
Spurges Euphorbia spp
Star-of-Bethlehem Ornithogalum umbellatum
Stinging Nettle Urtica spp
Sudan Grass Sorghum spp
Sweetclover Melilotus alba and Melilotus officinalis
Sweet Pea, Tangier Pea, Everlasting Pea, Caley Pea and Singletary Pea Lathyrus spp
Tall Fescue Festuca arundinacea
Tobacco and Tree Tobacco Nicotiana spp
Tung Oil Tree Aleurites fordii
Vetch, Hairy Vetch, Narrow-leaved Vetch, Purple Vetch and Broad Beans Vicia spp
Water Hemlock or Cowbane Cicuta spp
White Clover Trifolium spp
White Snakeroot Eupatorium rugosum
Wisteria Wisteria spp
Wolfsbane Aconitum spp
Yellow Star Thistle Centaurea solstitialis
Yew Taxus cuspidata

 

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