394 



EXPERIMENT STATION BULLETIN. 



BORAGE FAMILY. BORAGINACEAE. 



Chiefly rough hairy herbs; flowers usually blue or white in one-sided cymes, mostly coiled from the 

 apex when young, and straightening as the successive flowers expand. A rather large family of 

 mucilaginous plants, consisting of 1,500 species. 



Here belong heliotrope, mertensia, forget-me-not, gromwell, comfrey, borage, and several weeds. 



Fig 169 (149). 



Hound's Tongue. Cynoglossum officinale 

 L. A stout, coarse, erect, biennial, 40-120 

 cm. high; corolla reddish-purple; nutlets flat, 

 oblique, roughened with short barbed, hooked 

 prickles, making a sharpjbur. 



Introduced from Europe into waste places 

 and old pastures. 



Fig. 170 (150). ^ 



Stick-seed. Bur Seed. Lappula echinata 

 Gilibert. (Echinospermum Lappula Lehmn.) 

 An erect, rough, annual, 30-60 cm. high; corolla 

 blue. Naturalized from Europe. 



