Poison Ivy in the Fall

During the Fall, the leaves of the poison ivy turn red and then eventually yellow.

Used by permission. 2001-2004 www.arttoday.com.

Poison Ivy Plant

• Three leaves
• Poison ivy grows as a small plant, as a bush, or as an vine.

Used by permission. 2001-2004 www.arttoday.com.

Poison Ivy Plant

• Leaves in threes characterize poison ivy.
• Toxicodendron radicans. This plant is common in the eastern United States

From the CDC's Public Health Image Library (http://phil.cdc.gov), ID#1110, in the public domain.

Content Providers: CDC / Dr. Edwin P. Ewing.

Poison Ivy Rash on Arm

• This photograph shows an individual's arm with a blistering poison oak rash. Note the linear pattern to the lesions.
• The Rhus genus of plants include poison ivy, poison oak and poison sumac. When the oil from such plants gets on the skin, it begins to penetrate in minutes. A blistering reaction appears, usually within 12 - 48 hours.

From the CDC's Public Health Image Library (http://phil.cdc.gov), ID#4484, in the public domain.

Poison Ivy Rash on Forearm

• The oil contained in the plant leaves irritates the skin.
• The redness and blistering from the rash is often arranged in streaks or lines, because the leaf brushes across the body in a line as an individual walks past.

Copyright 2000-2006. LMS, Inc. Used by Permission.

Poison Ivy Rash on Wrist

Copyright 2000-2006. LMS, Inc. Used by Permission.