Wildflowers of Toronto's High Park​​

Lettuce, white and Rattlesnake-roots
Family: Composite/Aster
Genus: ​Prenanthes
Native to Ontario 
Perennial 

Lettuce, white or
Rattlesnake-root, white
P.alba

Habitat: Rich woodlands
Blooms: August to September
​Height: up to 1.7 m

​Flower clusters of 10-15 nodding bell-shaped flower heads consisting of only ray florets (white, pinkish or purplish)  with protruding styles. 

Smooth purple phyllaries (sepal-like bracts) 

Stem: Purplish-green ​​
Rattlesnake-root, tall white.
P.altissima


Habitat: Woodlands
Blooms: August to September
​Height: up to 1.8 m

​Flower heads: 5-6 greenish-white ray flowers with dark-tipped phyllaries and lighter brown pappus.