shumac vs sumach

shumac and sumach both are nouns.

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

As nouns, shumac and sumach are synonyms defined as:

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

Other synonyms of shumac include sumac.

shumac (noun)	sumach (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)