单词 | Acrostichum aureum |
释义 | Acrostichum aureum (once / 5909656 pages) n WORD FAMILY Acrostichum aureum n stout tropical swamp fern (especially tropical America) having large fronds with golden yellow sporangia covering the undersides Syn|Hyper golden fern, leather 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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