camass vs camas

camass and camas both are nouns.

Word	Noun	Adjective	Verb	Adverb
camass	Yes	No	No	No
camas	Yes	No	No	No

As nouns, camass and camas are synonyms defined as:

camass and camas: any of several plants of the genus Camassia; North and South America

Other synonyms of camass include camash, camosh, quamash.

camass (noun)	camas (noun)
any of several plants of the genus Camassia; North and South America	any of several plants of the genus Camassia; North and South America