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 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 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.
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