Poisonous PlantsThe plants listed on this page fall into one of the following categories: - Plants known to be poisonous or produce toxins (oral, dermal etc...)
- Plants considered medicinal, for which overdosing could be toxic
- Plants containing substances considered toxic, but perhaps present in quantities less than that required to be considered 'poisonous' by poison control standards.
- Plant species of unknown phytochemical composition, but which have closely related species that do contain toxic constituents. These plants should be considered potentially toxic unless otherwise determined to be safe.
- Plants appearing in the FDA Poisonous Plants Database - note that this is based upon various literature information and is not validated by the FDA. It is merely a starting point.
The plants on this list should not immediately be assumed to be dangerous, but inclusion on this list would suggest further research to determine the level of toxicity posed by the plant and the type of chemicals contained therein. As of December 3rd, 2001, we are attempting to document our entire collection with regards to potential toxins - plants will appear on this listing as we get the data online. We will include basic information where possible on the toxic constituents of the plants and will provide further references at the bottom of each page. | Collection Accessions:- Adenia glauca - Passifloraceae
- Adenium obesum - Apocynaceae
- Allamanda cathartica - Golden Trumpet - Apocynaceae
- Argyreia nervosa - Convolvulaceae
- Banisteriopsis caapi - Ayahuasca, Caapi, Yage - Malpighiaceae
- Brugmansia aurea - 'Culebra' - Solanaceae
- Brunfelsia pauciflora var. calycina - Morning, Noon and Night - Solanaceae
- Catharanthus roseus - Rose Periwinkle, Old-Maid - Apocynaceae
- Clerodendrum trichotomum - Harlequin Glorybower - Lamiaceae
- Coriaria myrtifolia - Coriariaceae
- Coriaria nepalensis - Coriariaceae
- Corynocarpus laevigata - Karaka, New Zealand Laurel - Corynocarpaceae
- Crinum asiaticum - Asiatic Poison Lily, Poison Bulb - Amaryllidaceae
- Cryptostegia grandiflora - Rubber Vine, Purple Allamanda - Apocynaceae
- Daphne bholua - Lokta - Thymelaeaceae
- Echium fastuosum - Pride of Madeira - Boraginaceae
- Euphorbia abyssinica - Euphorbiaceae
 Euphorbia bupleurifolia x susannae - Euphorbiaceae
- Euphorbia canariensis - Euphorbiaceae
- Euphorbia virosa ssp. virosa - Gifnoors - Euphorbiaceae
- Gelsemium sempervirens - Carolina Jessamine, Trumpet Flower - Gelsemiaceae
- Harpephyllum caffrum - Kaffir Plum - Anacardiaceae
- Jatropha podagrica - Tartogo, Australian Bottle Plant - Euphorbiaceae
- Leonotis leonurus - Lion's Tail, Wild Dagga - Lamiaceae
- Mandragora autumnalis - Autumn Mandrake - Solanaceae
- Monstera deliciosa - Swiss Cheese Plant, Ceriman, Mexican Breadfruit - Araceae
- Neomarica gracilis - Walking Iris, Apostle Plant - Iridaceae
- Nerium oleander - Oleander, Rose Laurel - Apocynaceae
- Nicotiana glauca - Tree Tobacco - Solanaceae
- Ochrosia elliptica - Berrywood Tree - Apocynaceae
- Ornithogalum longibracteatum - Asparagaceae
- Rhoeo spathacea - Moses-In-The-Boat, Oyster Plant - Commelinaceae
- Ricinus communis - Castor Bean Plant - Euphorbiaceae
- Stachyurus chinensis - Chinese stachyurus - Stachyuraceae
- Tabernaemontana elegans - Toad Tree - Apocynaceae
- Thevetia peruviana - Bestill Tree, Yellow Oleander, Lucky Nut - Apocynaceae
- Tolmiea menziesii - Piggyback Plant - Saxifragaceae
- Trichocereus pachanoi - San Pedro Cactus, Aguacolla - Cactaceae
- Triglochin maritima - Seaside arrowgrass - Juncaginaceae
- WISHLIST ITEM: Barringtonia asiatica - Sea Poison Tree - Barringtoniaceae
- WISHLIST ITEM: Boophane disticha - Veld Fan, Bushman Poison Bulb - Amaryllidaceae
- WISHLIST ITEM: Helleborus foetidus - Bear's Foot, Stinking Hellebore - Ranunculaceae
- WISHLIST ITEM: Strychnos nux-vomica - Nux Vomica - Loganiaceae
- WISHLIST ITEM: Triglochin palustris - Marsh Arrow Grass - Juncaginaceae
- WISHLIST ITEM: Wigandia caracasana - Boraginaceae
= Currently Flowering
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