单词 | pod fern |
释义 | pod fernrare noun A pantropical aquatic fern, Ceratopteris thalictroides (family Parkeriaceae), in which the rolled leaf margins of the fertile fronds enclose the spores to give the impression of a seed pod. OriginMid 19th century; earliest use found in John Loudon (1783–1843), landscape gardener and horticultural writer. |
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