| 单词 | Cystopteris fragilis |
| 释义 | Cystopteris fragilis (once / 3939771 pages) n WORD FAMILY Cystopteris fragilis n delicate fern widely distributed in North America and European having thin pinnatifid fronds with brittle stems Syn|Hyper brittle bladder fern, brittle fern, fragile fern bladder fern any fern of the genus Cystopteris characterized by a hooded indusium or bladderlike membrane covering the sori |
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