MICHIGAN WEEDS. 



413 



TEASEL FAMILY. DIPSACACEAE. 



A very small family of coarse herbs consisting of only 140 species. Natives of the 

 old world. Species of scabious are grown for ornament. The fuller's teasel is grown 

 for the purpose of placing the ripened headsr.with their stiff-hooked prickles in revolv- 

 ing frames to produce nap on cloth. 



Fig. 202 (177). 



Common Teasel. Dipsacus sylvestris Huds. A coarse, prickly biennial, 60-180 cm. 

 high leaves sessile, opposite; heads 7-10 cm. long; flowers lilac in color. Waste places 

 rom Europe. 



