Rhus toxicodendron L. - Poison Oak

Toxicodendron pubescens plant

Family - Anacardiaceae

Stems - No info. yet.

Leaves - No info. yet.

Toxicodendron pubescens leaflet

Inflorescence - No info. yet.

Flowers - No info. yet.

Toxicodendron pubescens flowers

Flowering - May - June.

Habitat - Limestone glades, sandy or rocky open woods, prairies.

Origin - Native to U.S.

Other info. - This species can only be found in about 3 southern Missouri counties. It is much more common in states to the east.
The plant is easy to recognize because of its three oak leaf-shaped leaflets (hence the common name "Poison Oak"). This is a small, shrubby species growing to about 60cm tall. The plant spreads by rhizomes and is not nearly as aggressive as the closely related R. radicans L., otherwise known as "Poison Ivy."

Photographs taken at the Weymouth Woods Sandhills Nature Preserve, NC., 4-27-03, and at Fort Benning, GA., 5-6-05.


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