| 单词 | poison oak |
| 释义 | > as lemmaspoison oak poison oak n. any of several North American shrubs of the genus Rhus or Toxicodendron (family Anacardiaceae), having leaves resembling those of oak which usually cause severe skin irritation if touched, esp. (more fully eastern poison oak) R. toxicodendron of the eastern U.S., and (more fully western poison oak) R. diversiloba of the Pacific states (cf. poison sumac n., poison ivy n.). ΘΚΠ the world > plants > particular plants > plants perceived as weeds or harmful plants > poisonous or harmful plants > [noun] > poison ivy poison-weed1624 poison vine1709 Toxicodendron1722 poison oak1739 poison ivy1782 ivy1788 mercury1792 1739 J. Clayton & J. F. Gronovius Flora Virginica I. 33 Rhus foliis ternatis..folio querciformi. Poison-Oak. 1842 J. S. Buckingham Slave States I. 543 Among the shrubs we were shown one that grew like a vine or creeper, called ‘the poison oak’, the leaves of which exude some liquid which is particularly obnoxious to some constitutions, but does not affect others. 1911 J. Muir My First Summer in Sierra 34 Poison oak or poison ivy (Rhus diversiloba), both as a bush and a scrambler up trees and rocks, is common throughout the foothill region. 1993 Outdoor Canada Mar. 53/2 Along with such familiar campsite companions as poison ivy and poison oak, contact allergens also include fabrics, plastics, dyes [etc.]. < as lemmas |
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