is approximately 10 miles southwest, and 10-700 ft 

 (3-200 m) lower than the Elk Lake (002,006,007) 

 and Hidden Lake (008) populations. This station 

 is also ca. 13 miles southwest and 600 ft. (180 m) 

 higher than the West Fork Madison (004) 

 population. Finally, the nearest long term 

 climatological station to the French Creek (003) 

 and Kelly Reservoir (010) C. subniveum populations 

 is at Dillon (elev. 5228 ft. (1595 m) ) . The 

 station is approximately 11 miles southeast, and 

 1500-1900 ft (450-570 m) lower than these 

 populations. 



Table 1. Long term climatological data for Virginia City, 

 Lakeview, and Dillon, Montana. 



weather station 



station elevation 



mean annual 

 temperature 



mean maximum 

 temperature in 

 July 



mean minimum 

 temperature in 

 January 



mean annual 

 precipitation 



Virginia City 

 5776 ft (1733 m) 

 42.4°F (5.7°C) 



81.3°F (21.7°C) 



10.6°F (-11.9°C) 

 16.26 in (40.5 cm) 



Lakeview 



6710 ft (2010 m) 



35.0°F (1.7°C) 



76.5°F (24.9°C) 



0.5°F (-17.6°C) 



Dillon 



5228 ft (1565 m) 



42.6°F (5.9°C) 



83.3°F (28.7°C) 



9.4°F (-12.7°C) 



20.52 in (51.3 cm) 9.53 in (23.8 cm) 



Due to differences in elevation and geographic 

 position between the Virginia City and Dillon 

 stations and their associated populations, it is 

 likely that the C. subniveum populations receive 

 more precipitation than is listed for the station, 



F. POPULATION DEMOGRAPHY AND BIOLOGY 



1. PHENOLOGY: This species flowers from early July 

 through mid- to late August. Flowering heads may 

 contain mature seeds as early as late July. This 

 late flowering species may be restricted to higher 

 elevation sites where moisture is available later 

 into the summer months. 



2. POPULATION SIZE AND CONDITION: Population sizes 

 are small ranging from ca. 10 to 210 individuals. 

 The area covered by populations ranges from ca. 1 



