sumac vs shumac

sumac and shumac both are nouns.

Word	Noun	Adjective	Verb	Adverb
sumac	Yes	No	No	No
shumac	Yes	No	No	No

As nouns, sumac and shumac are synonyms defined as:

sumac and shumac: a shrub or tree of the genus Rhus (usually limited to the non-poisonous members of the genus)

Other synonyms of sumac include sumach.

sumac (noun)	shumac (noun)
a shrub or tree of the genus Rhus (usually limited to the non-poisonous members of the genus)	a shrub or tree of the genus Rhus (usually limited to the non-poisonous members of the genus)
wood of a sumac