Mary Jane vs locoweed

Mary Jane and locoweed both are nouns.

Word	Noun	Adjective	Verb	Adverb
Mary Jane	Yes	No	No	No
locoweed	Yes	No	No	No

As nouns, Mary Jane and locoweed are synonyms defined as:

Other synonyms of Mary Jane include dope, gage, grass, green goddess, pot, sens, sess, skunk, smoke, weed.

Mary Jane (noun)	locoweed (noun)
street names for marijuana	street names for marijuana
	any of several leguminous plants of western North America causing locoism in livestock