witch hazel plant vs wych hazel

witch hazel plant and wych hazel both are nouns.

Word	Noun	Adjective	Verb	Adverb
witch hazel plant	Yes	No	No	No
wych hazel	Yes	No	No	No

As nouns, witch hazel plant and wych hazel are synonyms defined as:

witch hazel plant and wych hazel: any of several shrubs or trees of the genus Hamamelis; bark yields an astringent lotion

Other synonyms of witch hazel plant include witch hazel, wych hazel plant.

witch hazel plant (noun)	wych hazel (noun)
any of several shrubs or trees of the genus Hamamelis; bark yields an astringent lotion	lotion consisting of an astringent alcoholic solution containing an extract from the witch hazel plant
	any of several shrubs or trees of the genus Hamamelis; bark yields an astringent lotion