Prunus mume vs apricot

Prunus mume and apricot both are nouns.

Word	Noun	Adjective	Verb	Adverb
Prunus mume	Yes	No	No	No
apricot	Yes	No	No	No

As nouns, apricot is a hypernym of Prunus mume; that is, apricot is a word with a broader meaning than Prunus mume:

Prunus mume: Japanese ornamental tree with fragrant white or pink blossoms and small yellow fruits
apricot: Asian tree having clusters of usually white blossoms and edible fruit resembling the peach

Other hypernyms of Prunus mume include apricot tree.

Prunus mume (noun)	apricot (noun)
Japanese ornamental tree with fragrant white or pink blossoms and small yellow fruits	a shade of pink tinged with yellow
	downy yellow to rosy-colored fruit resembling a small peach
	Asian tree having clusters of usually white blossoms and edible fruit resembling the peach