| 单词 | brittle fern |
| 释义 | brittle fern (once / 5909656 pages) n WORD FAMILY brittle fern USAGE EXAMPLESAn Ipomoea or two, and a scarlet flowered dwarf Heliconia, kept up the tropic type, as does a stiff brittle fern about two feet high. Holden, Edward Singleton, Young Folks' Library, Volume XI (of...(2010) n delicate fern widely distributed in North America and European having thin pinnatifid fronds with brittle stems Syn|Hyper Cystopteris fragilis, brittle bladder 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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