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Polypodiophyta

(Encyclopedia) PolypodiophytaPolypodiophytapŏlˌēpōˌdēŏfˈətə [key], division of the plant kingdom consisting of the plants commonly called ferns. The ferns are vascular plants with stems, roots, and…

water clover

(Encyclopedia) water clover, common name for various species of aquatic ferns.

asparagus

(Encyclopedia) asparagus, perennial garden vegetable (Asparagus officinalis) of the family Liliaceae (lily family), native to the E Mediterranean area and now naturalized over much of the world. As…

vascular bundle

(Encyclopedia) vascular bundle, in botany, a strand of conducting tissue extending lengthwise through the stems and roots of higher plants, including the ferns, fern allies, gymnosperms, and…

cycad

(Encyclopedia) cycadcycadsīˈkăd [key], any plant of the order Cycadales, tropical and subtropical palmlike evergreens. The cycads, ginkgoes, and conifers comprise the three major orders of…

bracken

(Encyclopedia) bracken or brake, common name for a tall fern (Pteridium aquilinum) with large triangular fronds, widespread throughout the world, often as a weed. It is considered poisonous to…

bayberry

(Encyclopedia) bayberry, common name for the Myricaceae, a family of trees and shrubs with aromatic foliage, found chiefly in temperate and subtropical regions. The waxy gray “berries” of the North…

climbing plant

(Encyclopedia) climbing plant, any plant that in growing to its full height requires some support. Climbing plants may clamber over a support (climbing rose), twine up a slender support (hop,…

cryptogam

(Encyclopedia) cryptogam, in botany, term used to denote a plant that produces spores, as in algae, fungi, mosses, and ferns, but not seeds. The term cryptogam, from the Greek kryptos, meaning “…

Hawaii Volcanoes National Park

(Encyclopedia) Hawaii Volcanoes National Park, 209,695 acres (84,926 hectares), on Hawaii island, Hawaii; est. 1916. The park contains two of the most active volcanoes in the world—Kilauea with its…