Cardiac glycosides are found in a diverse group of plants including Digitalis purpurea and Digitalis lanata (Foxgloves), Nerium oleander (Common oleander), Thevetia peruviana (yellow oleander), Convallaria majalis (Lily of the valley), Urginea maritime and Urginea indica (Squill), Strophanthus
gratus (ouabain), Apocynum cannabinum (Dogbane), and Cheiranthus cheiri (Wallflower) has resulted in cardiac glycoside poisoning.
The medicine that supports all aspects of the parasympathetic nervous system is a medicine from the strophanthus
plant called ouabain, or g-strophanthin.
So far, 12 species of the family Apocynaceae, namely, Allamanda cathartica, Alstonia scholaris, Alyxia sinensis, Catharanthus roseus, Cerbera manghas, Melodinus suaveolens, Nerium oleander, Plumeria acutifolia, Strophanthus
divaricatus, Tabernaemontana divaricata, Thevetia peruviana, and Trachelospermum jasminoides, have been evaluated for fungal endophytes from foliar segments, phloem (C.
The Apocyanaceae (dog banes) are sources of African arrow poisons (for example Carissa acokanthera, bushman's poison' and Strophanthus
hispidus) and also contain many of the most beautiful but deadly tropical flowering shrubs such as Plumeria rubra, frangipani', Nerium oleander, common, pink or white oleander' and Thevetia peruviana, yellow oleander' .
Melodinus, Nerium, Strophanthus
, Stephanostemma, Wrightia); a small, thin flap that forms a pouch in the petal sinus (e.