tree fern, any fern fern, any plant of the division Polypodiophyta. Fern species, numbering several thousand, are found throughout the world but are especially abundant in tropical rain forests. The ferns and their relatives (e.g.
..... Click the link for more information. having a treelike trunk. Sometimes other similar primitive plants are also called tree fern, e.g., species of cycad cycad , any plant of the order Cycadales, tropical and subtropical palmlike evergreens. The cycads, ginkgoes, and conifers comprise the three major orders of gymnosperms, or cone-bearing plants (see cone and plant). The cycads first appeared in the Permian period.
..... Click the link for more information. .

tree fern

Any of various ferns (especially those of the families Cyatheaceae and Marattiaceae) of treelike habit with a woody stem. Many attain heights over 50 ft (15.2 m). They are natives of humid mountain forests in the tropics and subtropics and of warm temperate regions of the Southern Hemisphere. The family Marattiaceae contains six genera; one species, Angiopteris evecta, has leaves (fronds) 15 ft (4.5 m) or more in length and stems of 2–6 ft (60–180 cm). Now-extinct members of the family date to the Carboniferous Period (354–290 million years ago). Members of the family Cyatheaceae are very large, terrestrial ferns with trunklike, upright rhizomes; the nearly 1,000 species are grouped into seven genera.

tree fern

any of numerous large tropical ferns, mainly of the family Cyatheaceae, having a trunklike stem bearing fronds at the top

tree fern [′trē ‚fərn]

(botany)

The common name for plants belonging to the families Cyatheaceae and Dicksoniaceae; all are ferns that exhibit an arborescent habit.

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tree fern (redirected from Cyatheales)

tree fern

tree fern
(redirected from Cyatheales)