Apocynaceae
Aspidosperma
A plant genus of the family APOCYNACEAE. It contains ellipticine.
Asclepiadaceae
Tabernaemontana
A plant genus of the family APOCYNACEAE that contains bisindole alkaloids and IBOGAINE.
Asclepias
A plant genus of the family ASCLEPIADACEAE. This is the true milkweed; APOCYNUM & EUPHORBIA hirta are rarely called milkweed. Asclepias asthmatica has been changed to TYLOPHORA.
Periploca
A plant genus of the family ASCLEPIADACEAE. It is a source of periplocosides (pregnane steroid glycosides).
Rauwolfia
A plant genus of the APOCYNACEAE or dogbane family. Alkaloids from plants in this genus have been used as tranquilizers and antihypertensive agents. RESERPINE is derived from R. serpentina.