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Related to Rhus: Rhus aromatica, Rhus dermatitis, Rhus typhina, Rhus trilobata, Rhus tox, RUHS, Rhus toxicodendron
a genus of trees and shrubs, many of them poisonous. Contact with certain species produces a severe dermatitis in sensitive individuals. The most important poisonous species are R. diversilo´ba and R. toxicoden´dron, or poison oak, R. ra´dicans, or poison ivy, and R. ver´nix, or poison sumac. Most species of Rhus are sometimes classified in the genus Toxicodendron. See also poison ivy, oak, and sumac.
A genus of vines and shrubs (family Anacardiaceae) containing various species that are used for their ornamental foliage; formerly used in tanning. Certain poisonous species are classified as Toxicodendron.
[L., fr. G. rhous, sumac]
Rhus(rus) a genus of trees and shrubs; contact with certain species produces a severe dermatitis in sensitive persons. The most important toxic species are: R. diversilo´ba and R. toxicoden´dron, or poison oak; R. ra´dicans, or poison ivy; and R. ver´nix, or poison sumac.
any member of the genus Rhus. See also rhus dermatitis.
a genus of vines and shrubs of the family Anacardiaceae, many of which are poisonous. Some species contain urushiol, a highly allergenic oleoresin mixture, and contact with them produces a severe dermatitis (rhus dermatitis) in sensitive persons. The most important toxic species are Rhus radicans L. (poison ivy), R. diversiloba L. (western poison oak), R. quercifolia (eastern poison oak), and R. vernix L. (poison sumac).
plant genus in family Anacardiaceae. Includes Toxicodendron spp.
Patient discussion about Rhus
Q. is poison ivy or sumac contagious
A. if you scratch the rash and it has open sores,the pus from the sores can spread to other parts of the body and to other people as well,More discussions about Rhus