bitterwood vs genus Picrasma

bitterwood and genus Picrasma both are nouns.

Word	Noun	Adjective	Verb	Adverb
bitterwood	Yes	No	No	No
genus Picrasma	Yes	No	No	No

bitterwood (noun)	genus Picrasma (noun)
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	small genus of deciduous trees of tropical America and Asia
West Indian tree yielding the drug Jamaica quassia
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