32 FLORA OF THE YELLOWSTONE NATIONAL PARK. 



Lupinus sericeus, Pursh. 



Common throughout : Mammoth Hot Springs, GOOO ft. alt. ; Blacktail 

 Deer Creek, 7300 ft. alt. ; Mt. Washburne, 9800 ft. alt. ; Mt. Holmes, 

 10,000 ft. alt. 



Lupinus argenteus, Pursh., var. decumbens, Wats. 



With the preceding, but more frequent hi meadow.s from 8500-9500 ft. 

 alt. ; Mammoth Hot Springs, 5900 It. alt. ; Mirror Lake Plateau, 8800 

 ft. alt. ; Mud Springs and Yellowstone Lake {L. laxiflorus, Dough, var. 

 tenellus, T. and G.), Adams. 



Lupinus Burkei, Watson. 



Border of woods;. Turbid Lake, 8000 ft. alt. Open pine woods, 

 Mirror Lake Plateau, 8600 ft. alt. ; Upper Falls of the Yellowstone {L. 

 polyphyllus, Lindl.), Adams. 



Lupinus pusillus, Pursh. 



Mouth of Gardiner River, 5300 ft. alt. Rare within the Park. 



Trifolium longipes, Nutt. 



Very common in bogs and meadows from GOOO-8500 ft. alt. 



Trifolium Kingii, Watson ( T. Haydeni, Porter). 



Subalpine wet slopes. Mt. Holmes, 9600 ft. alt. 



Trifolium Parryi, Gray. 

 "With the preceding. 



Astragalus caryocarpus, Ker. 



Mammoth Hot Springs, 5800 ft. alt. Rare. 



Astragalus Canadensis, L. 



Blacktail Deer Creek, 7~>00 ft. alt. ; Mammoth Hot Springs, 6200 ft. 

 alt. Rare. 



Astragalus hypoglottis, L. 



Grassy places. Common in the noithern portion of the Park. 



Astragalus Drummondii, Dough 



Mammoth Hot Springs, 6200 ft. alt. ; Sepulchre Mt., 8000 ft. alt. ; 

 Cache Creek, 7600 ft. alt, ; Gardiner River, 5700 ft. alt. Frequent. 



Astragalus aboriginum, Rich. 



Mt. Washburne, 10,000 ft. alt. ; hills along Soda Butte Creek, 8000 

 ft. alt. Rare, 



Astragalus oroboides, Ilornem., var. Americanus, Gray. 



Blacktail Deer Creek, 7300 ft. alt. ; Slough Creek, 6600 ft. alt. 



