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Common Name ------------------------------------------------ Cyanogenic plants Nitrate poisoning Photosensitization Avocado Azalea Baneberry Barilla Beaver poison Black Locust Black Nightshade Black Walnut Bleeding Heart Bluebonnet Blue Cardinal Flower Blue Cohosh Blue-Green Algae Bracken Fern Buckeyes Buckwheat Buttercup Caladium Calfkill Cardinal Flower Castorbean Chinaberry Tree Chokecherry Climbing Nightshade Clover Cocklebur Common Nightshade Corn-Lily Cottonseed Cowbane Cowslip Creeping Charlie Cycad Cypress Spurge Deadly Hemlock Deadly Nightshade Dogbane Doll's-eyes Dumbcane Dutchman's Breeches Ergot European Bittersweet Fern Fly Poison Flag Flat Pea Foxglove Gill-over-the-ground Ground Ivy Groundsel Halogeton Hoary Alyssum Horsechestnut Horse Nettle Hound's Tongue Indian hemp Indian Poke Indian Tobacco Indian Turnip Inkberry Iris Jack-In-The-Pulpit Jamestown Weed Japanese Pieris Jimsonweed Johnson Grass Lambkill Lamb's-Quarters Larkspur Lily Lily-Of-The-Valley Locoweed Lupine Mandrake Maple Marsh Marigold Marijuana Mayapple Milkweed Milo Monkshood Moon-lily Mountain Laurel Oaks Oleander Onion Pale Spike Lobelia Palma Christi Perilla Mint Philodendron Pigweed Pine, Ponderosa Poinsettia Poison Hemlock Poison Ivy Poison Parsley Pokeberry Poke Weed Potato Precatory Bean Red Maple Redroot Rhododendron Rhubarb Rosary Pea Runaway-Robin Sago Palm St. John's Wort Sensitive Fern Skunk Cabbage Small-flowered crowfoot Sneezeweed Snow-On-The-Mountain Sorghum Spotted hemlock Squirrel-corn Star-Of-Bethlehem Sudan Grass Sweetclover Sweet Pea Tansey Ragwort Thorn Apple Tobacco Tomato Vetchling Wartweed Water Hemlock Western False Hellebore Western Yellow Pine White Hellebore White Snake Root Wild Pea Wisteria Yellow Star Thistle Yew

Latin Name ------------------------------------------------ Abrus precatorius Acer rubum Actaea rubra Aconitum species Aeseulus species Allium cepa Amaranthus species Amianthium muscaetoxicum Anabaena species Apocynum species Arisaema species Asclepias species Astragalus species Atropa belladonna Berteroa incana Caladium xaiitliosoma Caltha palustris Cannabis sativa Caulophyllum thalictroides Centaurea solstitialis Chenopodium album Cicuta species Claviceps species Conium maculatum Convallaria majalis Cyanophyta species Cycas revoluta Cynoglossum officinale Datura species Delphinium species Dicentra species Dieffenbachia spequine or picta Digitalis purpurea Eupatorium rugosum Euphorbia species Fagoypyrum esculentum Glechoma hederacea Gossypium species Halogeton glomeratus Helenium loopesi Hypericum perforatum Iris species Juglans nigra Kalmia species Lathyrus species Lilium species Lobelia cardinalis Lobelia spicata Lobelia syphilitica Lupinus species Lycopersicon esculentum Melia azedarach Melilotus species Microcystis species Nerium oleander Nicotiana tabacum Onoclea sensibilis Ornithogallum umbellatrum Oxytropis species Perilla frutescens Persea americana Philodendron species Phytolacca americana Pieris japonica Pinus ponderosa Podophyllum peltatum Prunus species Pteridium aquilinum Quercus species Ranunculus species Rheum rhaponticum Rhododendron maximum Rhododendron species Rhus radicans Ricinus communis Robinia species Senecio species Solanum carolinense Solanum dulcamara Solanum nigrum Solanum tuberosum Sorghum species Symplocarpus foetidus Taxus species Trifolium species Veratrum californicum or viride Wisteria species Xanthium species

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CASTORBEAN - Ricinus communis

(88K)	(118K)	(76K)	(67K)

(113K)	(73K)

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Distinguishing features A 1-4 meter tall annual bushy shrub with large, palmately lobed leaves. Flowers are terminal panicles, fruits are globose, trilocular capsules with 3 oval seeds which resemble engorged ticks.

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Copyright © 2002

University of Pennsylvania

Created by:    Alexander Chan (2003), Daphne Downs (2002), Chris Tsai (2001), Brett Begley (2000), Janet Triplett (1997)

Faculty Advisor:  Dr. Robert Poppenga