单词 | Pellaea rotundifolia |
释义 | Pellaea rotundifolia (extremely rare) n WORD FAMILY Pellaea rotundifolia n fern of New Zealand and Australia having trailing fronds with dark green buttonlike leaflets Syn|Hyper button 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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