tree fern
短语n. 椤(产于热带)
词形变化
tree ferns
复数
tree ferns
别名
treefern
释义与例句
n.
-
1.
Any of many tropical ferns that have tall trunks topped with fronds, of the orders Cyatheales, Marattiales, and Osmundales, especially families Cyatheaceae, Dicksoniaceae, and Metaxyaceae in Cyatheales.