DESCRIPTIVE MANUAL 



267 



Fig. 153-C. Distribution of Wliite Vervain. 



Common Vervain {Verbena bracteosa Michx.). 



Description. — A widely spreading, hairy annual; leaves wedge- 

 lanceolate, eut-pinnatifid or sometimes 3-elef t ; flowers in spikes, 



Fig. 154. Prostrate Vervain CVerbena bracteosa). u. Plant hair or trichome. 



Common along roadsides, streets, and gravelly places ; small, blue flowers. 

 (General aspect photographed by Quade. u. drawn by Charlotte M. King.) 



