单词 | Cyathea medullaris |
释义 | Cyathea medullaris (once / 1969886 pages) n WORD FAMILY Cyathea medullaris n a showy tree fern of New Zealand and Australia having a crown of pinnated fronds with whitish undersides Syn|Hyper black tree fern, sago fern, silver tree fern tree fern any of numerous usually tropical ferns having a thick woody stem or caudex and a crown of large fronds; found especially in Australia and New Zealand; chiefly of the families Cyatheaceae and Marattiaceae but some from Polypodiaceae |
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