bamboo palm vs raffia palm

bamboo palm and raffia palm both are nouns.

Word	Noun	Adjective	Verb	Adverb
bamboo palm	Yes	No	No	No
raffia palm	Yes	No	No	No

As nouns, raffia palm is a hypernym of bamboo palm; that is, raffia palm is a word with a broader meaning than bamboo palm:

bamboo palm: a palm of the genus Raffia
raffia palm: a large feather palm of Africa and Madagascar having very long pinnatisect fronds yielding a strong commercially important fiber from its leafstalks

Other hypernyms of bamboo palm include Raffia farinifera, Raffia ruffia.

bamboo palm (noun)	raffia palm (noun)
a palm of the genus Raffia	a large feather palm of Africa and Madagascar having very long pinnatisect fronds yielding a strong commercially important fiber from its leafstalks
small graceful palm with reedlike stems and leaf bases clothed with loose coarse fibers