455 



leguminous plants, do not do well on calcareous soil nor on ground 

 which is at all wet, but for improving sandy fields they have few 

 equals. There are about ninety species of lupines native of the 

 United States, principally in the Rocky Mountains and Pacific 

 coast regions, and many of them have acquired local reputation as 

 being good pasture plants, particularly those that grow in the arid 

 south-west. One of our species, /.. pfrctiuis, which is common to 

 this country and the old world, is often cultivated as an ornamental 

 plant in gardens, and has been recommended by German agri- 

 culturists as equal to white lupine in certain dry soils. 



\ 



Fig. 1 8. Tarweed (Madia saliva}. 



Madia saliva. (Tarweed. Fig. 18.) A rank-growing annual, 

 native to both Chili and California, which has been recommended 

 as furnishing an excellent summer sheep forage. The leaves are 

 clammy, with a viscid exudation, and the plant has a rank odor. 

 Its chief merit is its rapid growth. It is cultivated in the arid 

 southwest and California, and makes a palatable and nutritious 

 food for sheep. An excellent lubricating oil is extracted from the 

 seeds. 



