Poison ivy

Poison ivy has trifoliate leaves.

An excerpt from the article 13 facts about Poison ivy

Their color ranges from light to dark green, and the leaves usually darken with age. 

The leaflets are on average about 10 cm (4 in) long, and the maximum leaf length is up to 30 cm (11,8 in).

In autumn they turn bright red or yellow and are shed in winter.