EXPERIMENT STATION BULLETINS. 



389 



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Fig. 178 (157). 



Hoarhound. Marrubium vulgare L. A bitter, whitish-woolly perennial, 30-90 cm. 

 high; leaves veined, circular to oval; densely many-flowered, corolla small, wliite. 



Introduced from Europe, and thrives in waste places where plants are protected all 

 winter by snow. 



