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[pep-er-gras, -grahs] /ˈpɛp ərˌgræs, -ˌgrɑs/
any pungent plant belonging to the genus Lepidium, of the mustard family, used as a potherb or salad vegetable.
Also called peppercress [pep-er-kres] /ˈpɛp ərˌkrɛs/ (Show IPA).
Compare garden cress.
late Middle English
1425-75; late Middle English; see pepper, grass Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for pepper grass


noun (US & Canadian)
any of various temperate and tropical aquatic or marsh ferns of the genus Marsilea, having floating leaves consisting of four leaflets: family Marsileaceae
any of several plants of the genus Lepidium, esp L. campestre, of dry regions of Eurasia, having small white flowers and pungent seeds: family Brassicaceae (crucifers) Also called (in Britain and certain other countries) pepperwort
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Encyclopedia Article for pepper grass


any of 230 species of herbs constituting the genus Lepidium, of the mustard family (Brassicaceae), distributed throughout the world. Many, such as L. perfoliatum, are lawn and field weeds, but some are useful salad plants. Most species have long taproots, broad basal leaves differing from the narrow leaves on the flowering stalks, and spikelike arrangements of small, greenish or whitish, four-petalled flowers. Each seed is in a flat, round, dry fruit. Garden cress (L. sativum), a North African annual, is sometimes cultivated for its piquant basal leaves. Virginia peppergrass (L. virginicum), spread throughout North America, sometimes is known as canary grass because its seed stalks are fed to cage birds. Its leaves are used in salads. Lentejilla, or little lentil (L. intermedium), native to Europe but long naturalized in Mexico, is used as a folk medicine. Pepperwort, or field pepper (L. campestre), a widespread weed, is native in Europe and naturalized in North America. It has hairy, arrow-like stem leaves and once was marketed as an antidote to poisons under the name of mithridate pepperwort

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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