Toxicodendron orientale

Toxicodendron orientale (Asian poison ivy) is an allergenic East Asian flowering plant in the genus Toxicodendron. The species was first characterized and named by Edward Lee Greene in 1905.[1] T. orientale is known to grow in Sakhalin, Japan, Taiwan, South central China, and South Korea. It was introduced to parts of Uzbekistan.[2]

Toxicodendron orientale
Toxicodendron orientale, Fukushima Prefect, Japan
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Sapindales
Family: Anacardiaceae
Genus: Toxicodendron
Species:
T. orientale
Binomial name
Toxicodendron orientale

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 3-10 cm 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. The flowers mature into yellow-brown fruit in August to September.

Caution

All parts of Toxicodendron orientale contain urushiol, which is known to cause severe contact dermatitis.[3]

References
  1. Greene, Edward L. (1905), Leaflets of Botanical Observation and Criticism, vol. 1, Washington DC, p. 127, retrieved November 4, 2022{{citation}}: CS1 maint: location missing publisher (link)
  2. "Toxicodendron orientale". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 4 November 2022.
  3. "Urushiol". PubChem. US National Library of Medicine. 1 January 2022. Retrieved 4 January 2022.
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