MONTANA NATURAL HERITAGE PROGRAM 

 Element Occurrence Record 



Scientific Name: CAREX IDAHOA 

 Common Name: IDAHO SEDGE 



Global rank: G2Q Forest Service status: SENSITIVE 

 State rank: SI Federal Status: 3C 



Element occurrence code: PMCYP036E0. 001 



Survey site name: HIGHLAND CITY 



EO rank: 

 EO rank comments: 



County: SILVER BOW 



USGS quadrangle: MOUNT HUMBUG 



Township/Range Section: TRS Note: 

 001N008W 35 SW4 



Survey date: Elevation: 6860 



First observation: 1981-07-22 Slope/aspect: 5% / WEST 

 Last observation: 1992-07-11 Size (acres) : 1 



Location: 

 | FROM BUTTE, TAKE STATE HWY 2 TOWARD PIPESTONE PASS; CA. 1.5 MILES 



BEFORE PASS, GO SOUTHWEST ON FS RD 84 (HIGHLAND ROAD) 10.25 MILES TO 

 0.1 MILE EAST OF TURNOFF TO MOOSE TOWN. SITE IS BETWEEN ROAD AND CREEK. 



Element occurrence data: 



1992: CA. 50 INDIVIDUALS, WITH IMMATURE FRUIT PRESENT. 1981: 20-30 

 PLANTS, GROWING RIGHT ALONG THE ROAD. 



General site description: 



1992: OPEN EXPOSURE ON STRAIGHT SLOPE; MOIST BOTTOM IN NARROW VALLEY 

 FLOODPLAIN. SILTY SOIL OF ALLUVIAL OR CALCAREOUS PARENT MATERIAL. 

 ASSOCIATED DOMINANT SPECIES: POTENTILLA FRUTICOSA, DESCHAMPSIA 

 CESPITOSA, JUNCUS BALTICUS. ADDITIONAL ASSOCIATED PLANT SPECIES: POA 

 PRATENSIS, CAREX PETASATA, FRAGARIA VIRGINIANA, POTENTILLA GRACILIS. 

 1981: CALCAREOUS WET-MOIST MEADOW SURROUNDED BY WILLOWS AND BOG BIRCH; 

 WITH CAREX SCOPULORUM, PEDICULARIS GROENLANDICA, THALICTRUM 

 SPARSIFLORUM, POTENTILLA FRUTICOSA. 



Land owner/manager: 



DEERLODGE NATIONAL FOREST, BUTTE RANGER DISTRICT 



Comments: 



ECODATA PLOT #92PL114. EVIDENCE OF LIVESTOCK DISTURBANCE. 



Information source: 



LESICA, P. DIVISION OF BIOLOGICAL SCIENCES, UNIV. OF MONTANA, 

 i MISSOULA, MT 59812. 



Specimens: 



LACKSCHEWITZ, K. (9728). 1981. MONTU 



