Fraxinus texensis vs ash

Fraxinus texensis and ash both are nouns.

Word	Noun	Adjective	Verb	Adverb
Fraxinus texensis	Yes	No	No	No
ash	Yes	No	Yes	No

As nouns, ash is a hypernym of Fraxinus texensis; that is, ash is a word with a broader meaning than Fraxinus texensis:

Fraxinus texensis: low-growing ash of Texas
ash: any of various deciduous pinnate-leaved ornamental or timber trees of the genus Fraxinus

Other hypernyms of Fraxinus texensis include ash tree.

Fraxinus texensis (noun)	ash (noun)
low-growing ash of Texas	any of various deciduous pinnate-leaved ornamental or timber trees of the genus Fraxinus
	strong elastic wood of any of various ash trees; used for furniture and tool handles and sporting goods such as baseball bats
	the residue that remains when something is burned

Fraxinus texensis (verb)	ash (verb)
	convert into ashes