| 单词 | brittle bladder fern |
| 释义 | brittle bladder fern (extremely rare) n WORD FAMILY brittle bladder fern n delicate fern widely distributed in North America and European having thin pinnatifid fronds with brittle stems Syn|Hyper Cystopteris fragilis, 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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