In the Dipsacus genus the small 4-petalled flowers are crowded in a bristly, egg-shaped head ringed by long, rigid, prickly bracts. The flowers tend to bloom together in a band around the head. The opposite leaves clasp the prickly stem.
Dried heads of Fuller''s teasel were once used to raise a nap on cloth, a process known as "teaseling".
This family contains flowers.