A plant of the genus
Dipsacus, of which one species (
Dipsacus fullonum) bears a large flower head covered with stiff, prickly, hooked bracts. This flower head, when dried, is used for raising a nap on woolen cloth. [
1913 Webster]
" Small teasel is Dipsacus pilosus, wild teasel is Dipsacus sylvestris."
[1913 Webster]