feather palm vs palm tree

feather palm and palm tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
feather palm	Yes	No	No	No
palm tree	Yes	No	No	No

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

feather palm: palm having pinnate or featherlike leaves
palm tree: any plant of the family Palmae having an unbranched trunk crowned by large pinnate or palmate leaves

Other hypernyms of feather palm include palm.

feather palm (noun)	palm tree (noun)
palm having pinnate or featherlike leaves	any plant of the family Palmae having an unbranched trunk crowned by large pinnate or palmate leaves