Poison ivy has compound leaves formed from groups of three leaflets. Individual plants have different numbers of total leaves based on the plant's size and age, but the individual leaves always consist of groups of three leaflets.
Poison ivy leaflets taper to a point. The edges of the leaflets vary. Some plants have smooth-edged leaflets, and others have fine teeth around the edge on one or both sides. Occasionally, poison ivy plants grow leaflets containing a notch, giving them the appearance of having two points.
The leaflets attach in groups of three via short stalks. The central leaflet connects with a longer stalk than the other two leaflets. The leaflets may be glossy or matte, and the exact shade of green of each leaflet varies, sometimes even among leaves on the same plant.