What does "matchweed" mean?

Synonym of broomweed (“plants of Gutierrezia genus”).

Matchweed

Common synonyms include: invasive weed, matchbush, noxious weed, nuisance weed, opportunist weed, pest plant.

noun

noun ·Rare ·Advanced level

Noun

1
Synonym of broomweed (“plants of Gutierrezia genus”). countable, uncountable
2
any of several plants of the genus Gutierrezia having tiny flower heads that resemble the heads of matches wordnet

From match + weed.