The leaves are often fuzzy due to fine hairs and turn red or brown in the fall. Like poison ivy, poison oak produces small, white, or yellow berries. Poison sumac is less common but more toxic ...

Poison sumac grows year-round and any part of the plant, including the leaves, stems, and berries, can cause an allergic reaction. Touching the plant triggers a rash that usually isn't dangerous ...

Poison oak has a cluster of 3 leaves attached to the stem. Poison sumac has 7 to 13 leaflets arranged in pairs. Leaf ...