xii. Sourdough Creek- two small 



subpopulations in <2 acres along creek; 

 100-200 stems observed in 1994; light to 

 moderate livestock grazing in 1994. 



c. Centennial Valley, Montana: Nine verified 

 populations occur in the Centennial Valley 

 area. Some populations are large and 

 undocumented populations probably occur on 

 private land. The plant is locally common in 

 the wetlands of this valley. 



i. Brundage Creek- small population in ,1 



acre roadside meadow; heavily grazed in 



1997. 

 ii. Clover Divide- small population along 



stream and seep areas over ca. 20 acres; 



ca. 200 stems observed in 1997; moderate 



livestock grazing, 

 iii. Lima Reservoir North- probably a large 



population over ca. 100 acres of seeps 



at the base of hills; heavily grazed in 



1997. 

 iv. Lima Reservoir Southwest- small 



population in <1 acre along small 



stream; ca. 200 stems in 1997; moderate 



to heavy livestock grazing. 

 V. Monida- small population in ca. 5 acres 



wet meadow along stream; 100-1000 stems 



estimated in 1985, <20 stems observed in 



1997; not grazed regularly, 

 vi. Mud Lake- large population in ca. 40 



acres along stream and around lake; 



>1,000 stems estimated in 1997; not 



grazed regularly, 

 vii. Sand Creek- large population over ca. 2 



acres of seeps at the base of hills; 



>10,000 stems estimated in 1997; not 



grazed in 1997. 

 viii Upper Deadman Creek- probably a medium- 

 size population in ca. 2 acres of wet 



meadow along stream; moderate to heavy 



grazing in 1997. 

 ix. Wolverine Creek- small population on <1 



acre along creek; ca. 20 stems observed 



in 1994; moderate livestock grazing in 



1994. 



d. Highland Mountains, Montana: seven small 

 populations are known in the Butte Highlands. 

 Carex parryana ssp. idahoa is local and 

 uncommon in this area. 



i. Blacktail Creek- probably a small 



population in ca. 1 acre along stream 



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