LEGUMINOSiE 



431 



native of Europe and Asia. It is much hardier than common 

 vetch, and consequently can be grown atjhigher latitudes. 

 Moreover, it is more drought-resistant and tolerant off alkali. 



Fig. 182. — Hairy vetch (Vicia villosa) . 



Hot summer weather is very harmful to its growth. It is 

 frequently planted on light, sandy soils, where it may be 

 plowed under as a green manure. 



