单词 | wood-fern |
释义 | wood-fern (extremely rare) n WORD FAMILY wood-fern n any of various ferns of the genus Dryopteris Syn|Hypo|Hyper wood fern, woodfern Dryopteris fragrans, fragrant cliff fern, fragrant shield fern, fragrant wood fern fern or northern Eurasia and North America having fragrant fronds Dryopteris filix-mas, male fernfern of North America and Europe whose rhizomes and stalks yield an oleoresin used to expel tapeworms Dryopteris marginalis, evergreen wood fern, leatherleaf wood fern, marginal wood fernNorth American fern with evergreen fronds Dryopteris oreades, mountain male ferna fern of the genus Dryopteris 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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