Difference between revisions of "Toxicodendron pubescens"

Latest revision as of 11:27, 7 July 2010

Toxicodendron pubescens (syn. Rhus pubescens; Atlantic Poison-oak) is an upright shrub that can grow to 1 m (3 ft) tall. The leaves are 15 cm (6 in) long, alternate, with three leaflets on each. The leaflets are usually hairy, and are variable in size and shape, but most often resembling white oak leaves; they usually turn yellow or orange in autumn. The fruit is small, round, and yellowish or greenish.

Distribution

This species is native to the Southeastern United States westward to Texas and Oklahoma. County specific distribution in Virginia is available.^[1]

Habitat

Atlantic Poison-oak can be found growing in forests, thickets, and dry, sandy fields.

Contact dermatitis

All parts of this plant contain urushiol, which can cause severe dermatitis in sensitive individuals. The risk of exposure may be reduced by learning to recognize and avoid this species and wearing clothing that covers the legs and arms. Contaminated clothing should be laundered before subsequent handling or use.

Effects

Effects of poison oak are similar to those of poison ivy. It first causes severe itching, evolves into inflammation, non-colored bumps, and then blistering when scratched.

See also

• Poison ivy
• Poison sumac
• Western Poison-oak

References

External links

• NCRS: USDA Plants Profile: Toxicodendron pubescensfr:Toxicodendron pubescens

fi:Myrkkysumakki

1. ↑ Digital Atlas of the Virginia Flora: Toxicodendron pubescens.