ROBINI A ASTRAGALUS 



563 



Fig. 311. Ground Plum (Astragalus 

 caryocarpus). It is not known whether 

 this species is poisonous or not, al- 

 though some of the related species are 

 known to be poisonous and belong to 

 the loco weeds. It is said that the 

 pods of this species are edible. (Ada 

 Hayden.) 



Fig. 31 la. Map showing distribution of Loco Weed or Purple I^oco Weed (Astragalus 

 molhssimus). After Marsh, U. S. Dept. Agr. 



