Wildflowers of Toronto's High Park​​

Ivy, poison 
​Toxicodendron radicans 

​Family: Sumac
Native to Ontario
Perennial

Blooms: June to July
Habitat: Open woods and thickets 

Leaves: Compound, consisting of 3 leaflets, the middle one having a longer stalk. Leaves turn red, orange or yellow in the fall.

Flowers: tiny, yellowish-green, in branching clusters.

​Fruit: pale berries, 4-5 mm in clusters.

Plant spreads by seed and by woody rhizomes.

​Every part of the plant is poisonous to the touch in all seasons, causing irritating inflamation of the skin.