Toxicodendron orientale

Toxicodendron orientale is an East Asian flowering plant in the genus Toxicodendron. It is a poison ivy, which can cause urushiol-induced contact dermatitis.

Description

Toxicodendron orientale is a climbing vine that grows on trees or other supports. The deciduous leaves of T. orientale are trifoliate and grow to be in length. Young branches are covered with small brown hairs that turn into red lenticels as the branches mature.
T. orientale flowers from May to June. The small yellow-green flowers grow in groups from the leaf axils. From August to September, the flowers mature into yellow-brown fruit.

Taxonomy

The species was first characterized and named by Edward [Lee Greene] in 1905.

Distribution and habitat

It is known to grow in Sakhalin, Japan, Taiwan, South central China, and South Korea. It was introduced to parts of Uzbekistan.

Toxicity

All parts of Toxicodendron orientale contain urushiol, which is known to cause severe contact dermatitis.