DESCRIPTIVE MANUAL 



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Fig. 153-C. Distribution of White Vervain. 



Common Vervain (Verbena bracteosa Michx.). 



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

 laneeolate, cut-pinnatifid or sometimes 3-cleft; flowers in spikes, 





Fig. 154. Prostrate Vervain {Verbena bracteosa). a. Plant hair or trichome. 



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

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



