Wildflowers of Toronto's High Park​​

Willow-herb 
Family:  Evening primrose
Genus: Epilobium 
Perennial

​Willow-herb, great hairy
E.hirsutum
Introduced

Blooms: June to September
Habitat: Moist to wet open areas.

​Height: up to 150 cm

Flower: 2.5 cm in clusters
4 stigma form a cross

​Stem: Hairy
​Willow-herb, narrow-leaved
E.leptophyllum

Native to Ontario

Blooms: Summer and early fall
Habitat: Moist to wet open areas.

​Height: up to 150 cm

Flower: A few mm. 

​Fruit: A dry narrow pod 35-80 mm which splits open when ripe.