| 单词 | Ambrosia psilostachya |
| 释义 | Ambrosia psilostachya (once / 11819311 pages) n WORD FAMILY Ambrosia psilostachya n coarse perennial ragweed with creeping roots of dry barren lands of southwestern United States and Mexico Syn|Hyper perennial ragweed, western ragweed ambrosia, bitterweed, ragweed any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma |
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