Gutierrezia texana vs matchweed

Gutierrezia texana and matchweed both are nouns.

Word	Noun	Adjective	Verb	Adverb
Gutierrezia texana	Yes	No	No	No
matchweed	Yes	No	No	No

As nouns, matchweed is a hypernym of Gutierrezia texana; that is, matchweed is a word with a broader meaning than Gutierrezia texana:

Gutierrezia texana: annual of southwestern United States having rigid woody branches with sticky foliage and yellow flowers
matchweed: any of several plants of the genus Gutierrezia having tiny flower heads that resemble the heads of matches

Other hypernyms of Gutierrezia texana include matchbush.

Gutierrezia texana (noun)	matchweed (noun)
annual of southwestern United States having rigid woody branches with sticky foliage and yellow flowers	any of several plants of the genus Gutierrezia having tiny flower heads that resemble the heads of matches