| 单词 | bead fern |
| 释义 | bead fern (extremely rare) n WORD FAMILY bead fern n beautiful spreading fern of eastern North America and eastern Asia naturalized in western Europe; pinnately divided fronds show a slight tendency to fold when touched; pinnules enclose groups of sori in beadlike lobes Syn|Hyper Onoclea sensibilis, sensitive fern fern any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores |
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