Toxicodendron

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Related to Poison-oak: poison sumac

Toxicodendron

 [tok″sĭ-ko-den´dron]
Rhus.

Toxicodendron

(tok'si-kō-den'dron),
A genus of poisonous plants (family Anacardiaceae), also known as Rhus, with smooth fruits and foliage that contain urushiol, which produces a contact dermatitis (Rhus dermatitis); species include poison ivy (Toxicodendron radicans), poison oak (Toxicodendron diversilobum), and poison sumac (Toxicodendron vernix)
[toxico- + G. dendron, tree]

Toxicodendron

[tok′sikōden′dron]
a genus of plants that includes poison ivy, poison oak, and poison sumac. The toxic agent in the plants is a nonvolatile oil, toxicodendrol. See also rhus dermatitis.

Tox·i·co·den·dron

(tok'si-kō-den'dron)
A genus of poisonous plants (also known as Rhus) with fruits and foliage that contain urushiol, which produces a contact dermatitis (rhus dermatitis); species include poison ivy (T. radicans), poison oak (T. diversilobum), and poison sumac (T. vernix).
[toxico- + G. dendron, tree]

Toxicodendron

plant genus in the family Anacardiaceae; plants cause a serious contact dermatitis in humans and dogs; includes T. diversilobum (Rhus toxicodendron, R. diversiloba, western poison oak), T. quercifolium (Rhus quercifolia, eastern poison oak), T. radicans (Rhus toxicodendron, Rhus radicans, poison ivy), T. vernix (Rhus vernix, poison sumac, poison elder).