cuprea bark
noun
cu·prea bark
ˈk(y)üprēə-
: the coppery-red bark of either of two South American trees (Remijia pedunculata and R. puridieana) that yields quinine
Word History
Etymology
American Spanish cuprea, any of several rubiaceous plants (including Remijia purdieana), from Late Latin, feminine of cupreus cupreous