Wildflowers of Toronto's High Park​​

Goldenrod, grass-leaved or lance-leaved
​Euthamia graninifolia

​Family: Composite/Aster
Native to Ontario
Perennial

Blooms: July to October
Habitat: Moist open areas and marshes

Height: up to 1.5 m

​Leaves: Narrow, lance-shaped, often infected with black spots caused by a fungus. 

​Flower head: 3-5 mm, composed of yellow ray and disk florets, arranged in flat-topped clusters.