Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun ambrosia_psilostachya

1 sense of ambrosia psilostachya

Sense 1
western ragweed, perennial ragweed, Ambrosia psilostachya -- (coarse perennial ragweed with creeping roots of dry barren lands of southwestern United States and Mexico)
       => ragweed, ambrosia, bitterweed -- (any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma)