a tall perennial woody plant having a main trunk and branches forming a distinct elevated crown; includes both gymnosperms and angiosperms

chiefly tropical trees and shrubs with bitter bark having dry usually one-seeded winged fruit

tree of the Amazon valley yielding a light brittle timber locally regarded as resistant to insect attack

medium to large tree of tropical North and South America having odd-pinnate leaves and long panicles of small pale yellow flowers followed by scarlet fruits

West Indian tree yielding the drug Jamaica quassia

handsome South American shrub or small tree having bright scarlet flowers and yielding a valuable fine-grained yellowish wood; yields the bitter drug quassia from its wood and bark

chiefly tropical trees and shrubs with bitter bark having dry usually one-seeded winged fruit