| 单词 | silver tree fern |
| 释义 | silver tree fern (extremely rare) n WORD FAMILY silver tree fern n a showy tree fern of New Zealand and Australia having a crown of pinnated fronds with whitish undersides Syn|Hyper Cyathea medullaris, black tree fern, sago 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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