(botany) A plant of division Pteridospermatophyta, which had fronds like a fern and naked seeds.

(botany) One of the asexual, dustlike spores of a fern which resemble seeds.

Either of two species of fern in the genus Asplenium (Asplenium rhizophyllum or Asplenium sibiricum) that produce new plantlets from the tips of their leaves.

Any of various simple vascular plants, of the family Psilotaceae, that have leafless dichotomous stems and produce spores.

Any of many tropical ferns that have tall trunks topped with fronds, of the orders Cyatheales, Marattiales, and Osmundales, especially families Cyatheaceae, Dicksoniaceae, and Metaxyaceae in Cyatheales.

Maidenhair (Adiantum spp.).

The leaf of a fern; used attributively in various terms (see Derived terms below).

genus Gymnocarpium (syn Thelypteris)

Diplazium esculentum; an edible fern found throughout Asia and Oceania.

Certain species of the fern genera Dryopteris, Polystichum, and others.