(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.

genus Gymnocarpium (syn Thelypteris)

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

plural of Boston fern

Nephrolepis exaltata cv. Bostoniensis, a fern with gracefully arching fronds.

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

Dryopteris (buckler ferns) / Lastreopsis spp. / Polystichum spp.

Matteuccia struthiopteris, a crown-forming, colony-forming fern occurring in temperate regions of the Northern Hemisphere in eastern and northern Europe, northern Asia and northern North America.

plural of ostrich fern