Wildflowers of Toronto's High Park​​

Tick-trefoils
Genus: ​Desmodium

Family: Pea/bean
Native to Ontario 

Fruit: 5-7 mm pod with 3-5 segments, covered in bristly hooked hairs that stick to clothing or animal fur, aiding dispersal.
Tick-trefoil, Canadian or showy
​D. canadense

​This is one of High Park's treasured native plants. 

Perennial
Blooms: July to September

Habitat: prairies, savannahs, sandy soil
Height: up to 1.8 m.

​Flower: 10-13 mm in cluster
Tick-trefoil, naked floweredh
​D. nudiflorum

Blooms: Summer
Habitat: dry woodland

Height: up to 1 m

Leaves: 3 broad entire leaflets arranged in a whorl low on the stem.

Flowers: Tiny on the leafless upper stem.