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tree fern |
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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 (sī`kăd), any plant of the order Cycadales, tropical and subtropical palmlike evergreens. ..... Click the link for more information. . tree fernAny 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 |
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There are tree ferns that grow up to 10 feet in height and other tree- and shrub-type ferns that grow to progressively lower heights until you reach ground covers such as the delicate - but durable when it gets just the right amount of light and moisture - maiden hair fern (Adianthus). Brachiosaurs took advantage of their long necks to feed on conifers, tree ferns and other tall, tough vegetation. The control plan calls for monitoring every three months and for encouraging native species through selective spraying of herbicides, seeding native pioneer shrubs, and replanting tree ferns. |
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