Fern ally

Isoëtes lacustris, a quillwort, from the Isoetopsida

Equisetum fluviatile, from the Equisetopsida (horsetails)

Psilotum nudum, from the Psilotopsida (whisk ferns)

Fern allies are a diverse group of seedless vascular plants that are not true ferns. Like ferns, a fern ally disperses by shedding spores to initiate an alternation of generations.

单词	Fern allies
释义	Fern allies 英语百科 Fern ally Fern allies are a diverse group of seedless vascular plants that are not true ferns. Like ferns, a fern ally disperses by shedding spores to initiate an alternation of generations.
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