hemp, common name for a tall annual herb (Cannabis sativa) of the family Cannabinaceae, native to Asia but now widespread because of its formerly large-scale cultivation for the bast fiber (also called hemp) and for the drugs it yields. Known and cultivated in ancient China, the plant was introduced into Europe before the Christian era. In the United States it was cultivated chiefly in the Midwest. The fiber, retted from the stem, was one of the most important for various kinds of cordage; it was also used in making paper, cloth (canvas and other kinds), oakum for calking ships, and other products. The male and female flowers are borne on separate plants. The chemical derived from the female flowering tops is used medicinally and is the source of marijuana marijuana or marihuana, drug obtained from the flowering tops, stems, and leaves of the hemp plant, Cannabis sativa (see hemp) or C. indica; the latter species can withstand colder climates.
..... Click the link for more information. and hashish hashish , resin extracted from the flower clusters and top leaves of the hemp plant, Cannabis sativa, and C. indica. Hashish, called charas in India, is the most potent grade of cannabis and is obtained from cultivated plants grown in hot, moist
..... Click the link for more information. . Hemp seed is used as bird food, and the oil from the seeds is used in the manufacture of paints, varnishes, and soap. The dried leaves are used in Asia for a beverage. The word hemp is used in combination for several other kinds of fiber plants, notably Manila hemp Manila hemp, the most important of the cordage fibers. It is obtained chiefly from the Manila hemp plant (Musa textilis) of the family Musaceae (banana family).
..... Click the link for more information. and sisal hemp sisal hemp [from Sisal, former chief port of Yucatan], important cordage fiber obtained from the leaves of the sisal hemp plant, an extensively cultivated tropical agave (family Agavaceae or Liliaceae).
..... Click the link for more information. . The true hemp plant is related to the hop hop, herbaceous perennial vine of the family Moraceae (mulberry family), widely cultivated since early times for brewing purposes. The commercial hop (Humulus lupulus
..... Click the link for more information. , which is used in making beer. Hemp is classified in the division Magnoliophyta Magnoliophyta , division of the plant kingdom consisting of those organisms commonly called the flowering plants, or angiosperms. The angiosperms have leaves, stems, and roots, and vascular, or conducting, tissue (xylem and phloem).
..... Click the link for more information. , class Magnoliopsida, order Urticales, family Cannabinaceae.
Stout, aromatic, erect annual herbaceous plant (Cannabis sativa, family Cannabaceae), the sole species of cannabis; also, its fibre. Hemp originated in Central Asia and is now cultivated widely in the northern temperate zone. A tall, canelike variety is raised for the fibre; a short, more branched variety is prized as the more abundant source of marijuana. Hemp fibre is strong and durable and is used for cordage and for artificial sponges and such coarse fabrics as sacking (burlap) and canvas. Hemp is grown primarily for fibre in most countries.
hemp
Hemp
..... Click the link for more information. and hashish hashish , resin extracted from the flower clusters and top leaves of the hemp plant, Cannabis sativa, and C. indica. Hashish, called charas in India, is the most potent grade of cannabis and is obtained from cultivated plants grown in hot, moist
..... Click the link for more information. . Hemp seed is used as bird food, and the oil from the seeds is used in the manufacture of paints, varnishes, and soap. The dried leaves are used in Asia for a beverage. The word hemp is used in combination for several other kinds of fiber plants, notably Manila hemp Manila hemp, the most important of the cordage fibers. It is obtained chiefly from the Manila hemp plant (Musa textilis) of the family Musaceae (banana family).
..... Click the link for more information. and sisal hemp sisal hemp [from Sisal, former chief port of Yucatan], important cordage fiber obtained from the leaves of the sisal hemp plant, an extensively cultivated tropical agave (family Agavaceae or Liliaceae).
..... Click the link for more information. . The true hemp plant is related to the hop hop, herbaceous perennial vine of the family Moraceae (mulberry family), widely cultivated since early times for brewing purposes. The commercial hop (Humulus lupulus
..... Click the link for more information. , which is used in making beer. Hemp is classified in the division Magnoliophyta Magnoliophyta , division of the plant kingdom consisting of those organisms commonly called the flowering plants, or angiosperms. The angiosperms have leaves, stems, and roots, and vascular, or conducting, tissue (xylem and phloem).
..... Click the link for more information. , class Magnoliopsida, order Urticales, family Cannabinaceae.
hemp
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Hemp (Cannabis sativa).
(credit: John Kohout from Root Resources)
hemp
1. an annual strong-smelling Asian plant, Cannabis sativa, having tough fibres, deeply lobed leaves, and small greenish flowers: family Cannabidaeceae
2. the fibre of this plant, used to make canvas, rope, etc.
3. any of several narcotic drugs obtained from some varieties of this plant, esp from Indian hemp
Hemp
the coarse bast fiber from the stem of hemp plants (Cannabis sativa). The bast fibers from other plant species are also called hemp, for example, Manila hemp. Industrial hemp consists of elementary fibers measuring 14–15 mm long that are glued together. Fibers more than 700 mm long are obtained by breaking and scutching the washed and dried stems of C. sativa. Short fibers measuring 175–250 mm long are obtained from cleaning the by-products of scutching; they are also obtained from the short, matted, entangled, low-quality straw. Hemp is used to manufacture rope, string, twine, fishnets, canvas, sailcloth, and materials for furniture upholstery and drapery.
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