piptostegia root
noun
pip·to·ste·gia root
ˌpiptəˈstēj(ē)ə-
: a jalap from the root of a Brazilian bindweed (Piptostegia pisonis)
called also Brazilian jalap
Word History
Etymology
New Latin Piptostegia genus of Convolvulaceae, from Greek piptein to fall + New Latin -o- + steg- + -ia