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RIVER LUPINE, OR PEA-VINE. 



(Lupinus rivularis, Dougl.) 



This is a very large-leaved lupine, found growing in wet, 

 swampy lands around springs and on river banks. It is con- 

 sidered very good forage for sheep, but is not as abundant as the 

 other lupines, as it does not occur in very large patches. As it is 

 the largest and most succulent lupine, it would be well worth 

 while to try and increase its production on the ranges. The 

 present method of grazing sheep by most sheepmen is sure to 

 exterminate it, as the flowers and leaves are eaten off, thus 

 allowing no seed to mature. Coville speaks of it as being eagerly 

 eaten by sheep in the mountains of Oregon. 



