locoweed vs Mary Jane

locoweed and Mary Jane both are nouns.

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

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

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

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