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.
rhus
Rhus,
Patient discussion about rhus.
Rhus (r s, r s)n. A genus of vines and shrubs including several species, especially poison ivy, poison oak, and poison sumac, producing oils that can cause dermatitis. |
rhus
[rus]
any member of the genus Rhus. See also rhus dermatitis.
Rhus,
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).
Rhus
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,
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