Wildflowers of Toronto's High Park​​

Tease, wild
​Dipsacus fullonum

​Family: Teasel
Biennial
Introduced

Blooms: July to September
Habitat: Waste places
Height: up to 2 m

Flower: 10-15 mm on an egg-shaped head 3-10 cm high. Flowers start to open in a belt around the middle of the head and progress daily in both directions, sometimes forming 2 bands.

The name "teasel" refers to use of the dried heads to tease the fibers of woolen cloth to raise the nap.

​The species name "fullonum" comes from the Latin for "fuller" (a person employed in cloth-making).