Any of several small trees and shrubs, of the genus Rauwolfia, that yields materials of medical use.
User Defined Definitions
"any of several alkaloids extracted from the shrub Rauwolfia serpentina"
"any shrub or small tree of the genus Rauwolfia having leaves in whorls and cymose flowers; yield substances used medicinally especially as emetics or purgatives or antihypertensives"