bracken

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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 livestock when eaten in quantity, but the rootstocks and the young shoots, cooked, are used for food. Bracken is also a source of tannin and is used for thatching and as bedding for livestock. A beverage is made from the roots. The names bracken and brake are sometimes also applied to other large, coarse ferns and, as general terms, to a thicket of such plants. Bracken is classified in the division PolypodiophytaPolypodiophyta
, division of the plant kingdom consisting of the plants commonly called ferns. The ferns are vascular plants with stems, roots, and leaves. The small and inconspicuous gametophyte and the large spore-producing fern plant are quite independent of each other.
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, class Polypodiopsida, order Filicales, family Polypodiaceae.

bracken

1. any of various large coarse ferns, esp Pteridium aquilinum, having large fronds with spore cases along the undersides and extensive underground stems
2. a clump of any of these ferns
References in periodicals archive ?
In order to further evaluate relationships within this group of closely related bracken ferns, haplotype networks were produced using the computer programs TCS 1.
1997) reported a lower pH and higher exchangeable Al in a site invaded for 30 years by bracken fern than in an undisturbed forest and suggested that the establishment of bracken fern is responsible for the subsequent alteration of soil properties, which can have significant implications for the growth of other species.
Thus, one sample of a shrub was approximately equal to 100 leaves (vine maple, oceanspray, and salmonberry [Rubus spectabilis]), 50 leaves (salal and California hazel [Corylus cornuta]), 5 fronds of bracken fern and 8 of sword fern, or a 1-[m.
Main publications for bracken fern use, Mitchell Plateau and Pilbara research
In many parts of North America bracken fern carpets thousands upon thousands of acres.
Ashes of bracken fern were used to make soap because of their high potash content (Clute 1938).
But I'm taking the longer, lightly used Trail of the Sequoias/Circle Meadow Loop through groves of sequoias, fragrant with the perfumes of bear clover and sugar pine, and out into meadows where the leaves of the black oak trees will soon be yellow and orange, the bracken fern burnished by frosty nights to the color of dark gold.
Other ferns that bear nectaries include the common bracken fern (Pteridium) (Darwin, 1877; Page, 1982; Power and Skog, 1987; Rumpf et al.
Bracken fern is very common in wooded areas and unimproved pastures.
A former clergyman and retired teacher, Herb, 67, saunters along the dirt track edged with salal, bracken ferns, young alders, pine--his lanky youthfulness undiminished by time.
Then the stag belted out an ear-splitting roar, and after hearing something--probably our heartbeats--the stag took two cautious steps uphill until his big brown eyes cleared the bracken ferns.