sycamore fig vs genus Ficus

sycamore fig and genus Ficus both are nouns.

Word	Noun	Adjective	Verb	Adverb
sycamore fig	Yes	No	No	No
genus Ficus	Yes	No	No	No

sycamore fig (noun)	genus Ficus (noun)
thick-branched wide-spreading tree of Africa and adjacent southwestern Asia often buttressed with branches rising from near the ground; produces cluster of edible but inferior figs on short leafless twigs; the biblical sycamore	large genus of tropical trees or shrubs or climbers including fig trees