anchovy pear tree vs river pear

anchovy pear tree and river pear both are nouns.

Word	Noun	Adjective	Verb	Adverb
anchovy pear tree	Yes	No	No	No
river pear	Yes	No	No	No

anchovy pear tree (noun)	river pear (noun)
West Indian tree bearing edible fruit resembling mango	West Indian fruit resembling the mango; often pickled