Net·tle n.  Bot. A plant of the genus Urtica, covered with minute sharp hairs containing a poison that produces a stinging sensation.  Urtica gracilis is common in the Northern, and Urtica chamaedryoides in the Southern, United States.  The common European species, Urtica urens and Urtica dioica, are also found in the Eastern united States. Urtica pilulifera is the Roman nettle of England.
 Note: ☞ The term nettle has been given to many plants related to, or to some way resembling, the true nettle; as: Australian nettle, a stinging tree or shrub of the genus Laportea (as Laportea gigas and Laportea moroides); -- also called nettle tree.
 Bee nettle, Hemp nettle, a species of Galeopsis. See under Hemp.
 Blind nettle, Dead nettle, a harmless species of Lamium.
 False nettle (Baehmeria cylindrica), a plant common in the United States, and related to the true nettles.
 Hedge nettle, a species of Stachys.  See under Hedge.
 Horse nettle (Solanum Carolinense).  See under Horse.
 nettle tree. (a) Same as Hackberry. (b) See Australian nettle (above).
 Spurge nettle, a stinging American herb of the Spurge family (Jatropha urens).
 Wood nettle, a plant (Laportea Canadensis) which stings severely, and is related to the true nettles.
 Nettle cloth, a kind of thick cotton stuff, japanned, and used as a substitute for leather for various purposes.
 Nettle rash Med., an eruptive disease resembling the effects of whipping with nettles.
 Sea nettle Zool., a medusa.


 Hemp n.
 1. Bot. A plant of the genus Cannabis (Cannabis sativa), the fibrous skin or bark of which is used for making cloth and cordage.  The name is also applied to various other plants yielding fiber.
 2. The fiber of the skin or rind of the plant, prepared for spinning. The name has also been extended to various fibers resembling the true hemp.
 African hemp, Bowstring hemp. See under African, and Bowstring.
 Bastard hemp, the Asiatic herb Datisca cannabina.
 Canada hemp, a species of dogbane (Apocynum cannabinum), the fiber of which was used by the Indians.
 Hemp agrimony, a coarse, composite herb of Europe (Eupatorium cannabinum), much like the American boneset.
 Hemp nettle, a plant of the genus Galeopsis (Galeopsis Tetrahit), belonging to the Mint family.
 Indian hemp. See under Indian, a.
 Manila hemp, the fiber of Musa textilis.
 Sisal hemp, the fiber of Agave sisalana, of Mexico and Yucatan.
 Sunn hemp, a fiber obtained from a leguminous plant (Crotalaria juncea).
 Water hemp, an annual American weed (Acnida cannabina), related to the amaranth.

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 hemp nettle
      n : coarse bristly Eurasian plant with white or reddish flowers
          and foliage resembling that of a nettle; common as a weed
          in United States [syn: dead nettle, Galeopsis tetrahit]