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单词 Regnellidium diphyllum
释义

Regnellidium diphyllum

英语百科

Regnellidium

(重定向自Regnellidium diphyllum)

Regnellidium is a monotypic genus of ferns of family Marsileaceae.

The single living species, Regnellidium diphyllum, the two-leaf water fern, is native to southeastern Brazil and adjacent regions of Argentina. It resembles its relatives from the genus Marsilea, but has 2-lobed leaves (rather than 4). This fern is sometimes grown in aquaria. It is the only non-flowering plant that produces latex.

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