303] FLORA OF BOULDER, COLORADO 1 55 



246. MEDICAGO L. Medic. 



613. M. lupulina L. Hop medic. 



Streets of Boulder, and about the quarries at the base of 

 the Flat-irons, 5300-6000 ft. (Daniels, 658). Not in Ryd- 

 berg's Flora. 



Europe and Asia, becoming cosmopolitan. 



247. MELILOTUS Juss. Sweet clover, Melilot. 



614. M. alba Desv. White sweet clover. 



Throughout the cultivated area, and abundant along rail- 

 roads, 5100-7000 ft. (Daniels, 591). 



Europe and Asia, thence to North America. 



615. M. oflficinalis (L.) Lam. Yellow melilot. 



Streets and waste places, and about the quarries at the base 

 of the Flat-irons, 5100-6000 ft. (Daniels, 657). 



Europe and Asia, thence to North America. 



248. GEOPRUMNON Rydb. Ground plum. 



616. G. succTiIentum (Richardson) Rydb. [Astragalus succu- 

 lentus Richardson; A. prunifer Rydb.]. Succulent 

 ground plum. 



Plains and foothills about Boulder, 5100-7000 ft. (Daniels). 

 Saskatchewan to Montana; South Dakota to Colo- 

 rado. 



249. ASTRAGALUS L. Milk vetch. 



617. A. Canadensis L. [A. Carolinianus L.]. Canada milk 

 vetch. 



Frequent on the plains, mesas, and along caiions in the foot- 

 hills, 5100-7000 (Green Mt.) ft. (Daniels, 461). 



Quebec to British Columbia; Florida to California. 



618. A. oreophilus Rydb. Mountain milk vetch. 



Plains, mesas, and foothills, local, 5100-8000 ft. (Daniels, 

 124). 



Colorado. 



