Poison ivy grows as a vine along the ground or climbs by red feeder roots. Poison oak grows like a bush. The greenish-white flowers are small and inconspicuous and are followed by waxy green berries that turn waxy white or yellow, then gray. Poison ivy and oak can be found in almost any habitat in North America. It has alternate, pinnately compound leafstalks with 7 to 13 leaflets.
Flowers are greenish-yellow and inconspicuous and are followed by white or pale yellow berries.
Poison sumac grows only in wet, acid swamps in North America. Flowers are similar to those of poison ivy and oak. India, east to Southeast Asia. This plant is one of the most dangerous plants. One seed may contain enough poison to kill an adult.