peachleaf willow vs willow

peachleaf willow and willow both are nouns.

Word	Noun	Adjective	Verb	Adverb
peachleaf willow	Yes	No	No	No
willow	Yes	No	No	No

As nouns, willow is a hypernym of peachleaf willow; that is, willow is a word with a broader meaning than peachleaf willow:

peachleaf willow: willow of the western United States with leaves like those of peach or almond trees
willow: any of numerous deciduous trees and shrubs of the genus Salix

Other hypernyms of peachleaf willow include willow tree.

peachleaf willow (noun)	willow (noun)
willow of the western United States with leaves like those of peach or almond trees	a textile machine having a system of revolving spikes for opening and cleaning raw textile fibers
	any of numerous deciduous trees and shrubs of the genus Salix