Wildflowers Found in Oregon

Poison Oak

Toxicodendron diversilobum - Common, late spring-early summer, perennial, 1-8 ft. Vine or shrub, round stems reddish or gray. Leaves divided into 3 oblong shiny leaflets on twigs to 4 in. long. Edges can be smooth, wavy, or lobed, Dark green color becomes bright red in autumn. Oblong clusters of flowers on a separate stalk. Berries cream or brown. Grows at low to mid elevations in woodlands and on rocky slopes. Although resin in all parts of plant is toxic to life-threatening, most people only suffer from rashes or blisters after contact. Do not touch this plant or burn it. Smoke will carry resin.