Pictures of poison ivy and oak during various seasons help with poison plant identification. Notice how the plants change color throughout the year.

Poison ivy images:

Single poison ivy leaf.
Single Poison Ivy Leaf
Poison ivy plant with berries
Poison ivy with berries
Poison Ivy leaves in the Fall.
Picture of poison ivy in the fall. It is common for poison ivy to climb up a tree as it grows.
Red Poison Ivy plant in winter.
Poison ivy turned red during the winter. Remember that you can still pick up the rash-causing oil after the leaves fall off.

Poison Oak Images:

Poison Oak Bush.
Poison oak bush picture
Poison oak plant in the Fall.
Image of poison oak in the fall
Red poison oak plant.
Poison oak turned completely red

 Poison sumac images:

Poison sumac plant with red stem.
Poison sumac plants have red stems, as pictured here
Red poison sumac plant in the Fall.
Poison sumac turning red in the fall

Where can you find poison ivy, oak and sumac plants?

Poison Ivy:

Poison ivy plant.

Grows throughout much of North America, including all Canadian provinces except Newfoundland (and the Territories) and all US states except Alaska, Oregon, Hawaii and California. The plants can grow as a shrub up to about 4 feet tall, as a groundcover, or as a climbing vine. The color of the three almond-shaped leaflets range from light to dark green and turn bright red in the fall. The plant's berries are a grayish-white color.

Poison Oak:

Poison oak plant.

Poison oak is found along the Pacific Coast of North America including Washington, Oregon and California, and along the Atlantic Coast. Poison oak can grow as a dense shrub in open sunlight or a climbing vine in shaded areas. The three leaflets have scalloped edges resembling the leaves of a true oak and can be bronze, bright green, yellow-green or reddish depending on the season. The plant can produce greenish-white or tan berries.

Poison Sumac:

Poison sumac plant.

Poison sumac grows exclusively in very wet or flooded soils, usually in swamps and peat bogs, in the eastern United States as far west as Idaho and Canada. Poison sumac has compound leaves with 7-13 leaflets, and the veins from which the leaflets grow are always red. The plant grows as a shrub and produces fruit that is a small white or grey berry.