Poison Ivy

Genus Rhus or Toxicodendron
Sumac Family (Anacardiaceae)







Poison Ivy
(Toxicodendron rydbergii)
   or (Rhus radicans)


Grows in shady places under groves of small trees. The plant has compound leaves, each with three leaflets.

The leaves are a glossy dark green color in the summer, and turn brilliant orange and red in the fall.




Patch of poison ivy

Poison ivy in fall colors


The plant has clusters of small yellowish white flowers in the spring, and smooth white berries in the fall which remain on the plant through the winter.

Poison ivy in the winter




Big Cottonwood Canyon
Wasatch Mountains
Salt Lake County, Utah


References


Photographed
by Sandra Bray