ambrosia psilostachya | sense examples, Usage and Definition from wordnet dictionary online

Noun ambrosia psilostachya has 1 sense

western ragweed, perennial ragweed, Ambrosia psilostachya - coarse perennial ragweed with creeping roots of dry barren lands of southwestern United States and Mexico
--₁ is a kind of ragweed, ambrosia, bitterweed