Fern

Gametophyte (thalloid green mass) and sporophyte (ascendent frond) of Onoclea sensibilis

Ferns at the Royal Melbourne Botanical Gardens

Tree ferns, probably Dicksonia antarctica, growing in Nunniong, Australia

A fern is a member of a group of about 12,000 species of vascular plants that reproduce via spores and have neither seeds nor flowers. They differ from mosses by being vascular (i.e. having water-conducting vessels). They have branched stems and leaves, like other vascular plants, but these are megaphylls, more complex than the simple microphylls of clubmosses. Most ferns have what are called fiddleheads that expand into fronds, which are each delicately divided.

单词	Fern seed
释义	Fern seed 英语百科 Fern A fern is a member of a group of about 12,000 species of vascular plants that reproduce via spores and have neither seeds nor flowers. They differ from mosses by being vascular (i.e. having water-conducting vessels). They have branched stems and leaves, like other vascular plants, but these are megaphylls, more complex than the simple microphylls of clubmosses. Most ferns have what are called fiddleheads that expand into fronds, which are each delicately divided.
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Fern seed

Fern