Any of several tropical ferns having more or less sword-shaped fronds including one from which the boston fern developed.

具有剑形复叶的热带蕨类，包括从波士顿蕨演变来的分支。

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Any of several tropical ferns having more or less sword-shaped fronds including one from which the boston fern developed.

具有剑形复叶的热带蕨类，包括从波士顿蕨演变来的分支。

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