| 单词 | Polypodium virgianum |
| 释义 | Polypodium virgianum (extremely rare) n WORD FAMILY Polypodium virgianum n chiefly lithophytic or epiphytic fern of North America and east Asia Syn|Hyper American wall fern, rock brake, rock polypody polypody any of numerous ferns of the genus Polypodium |
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