Fern ally

A clubmoss, from the Lycopodiopsida
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.