Cutleaf teasel (Dipsacus laciniatus)

Cutleaf teasel (Dipsacus laciniatus)
Images courtesy Western Society of Weed Science
Cutleaf teasel (Dipsacus laciniatus)
EDRR Species?: 

Other common names
Cut-leaved teasel

Biennial, flowers July to September. Grows up to seven feet tall. Rosette leaves are ovid to oblong; mature leaves are opposite, large, oblong and prickly. Upper stem leaves are irregularly lobed. Stems are tall and prickly. Flowers are small, white and packed into ovate heads. Common teasel is similar, but it has purple flowers and no lobes on upper leaves.

Invasive in grasslands, savannahs and waste areas.