单词 | Helminthostachys zeylanica |
释义 | Helminthostachys zeylanica (extremely rare) n WORD FAMILY Helminthostachys zeylanica n Australasian fern with clusters of sporangia on stems of fertile fronds Syn|Hyper flowering 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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