48 



ASTRAGALUS BARRII 

 BARR'S MILK-VETCH 



Element occurrence code: PDFAB0F150 . 010 



Global rank: G3 Forest Service status: SENSITIVE LIST 

 State rank: S3 



Survey site name: STAG ROCK KNOLLS 

 County: Powder River 



USGS quadrangle: FORT HOWES 



Township-range: 006S045E Section: 12 SW4 

 Township-range comments: Sec 13 NW4 



Survey date: 1988-05-14 Elevation: 3450 

 First observation: 1988 Slope/aspect: 



Last observation: 1988-05-14 Size (acres) : 15 



Location: 



CUSTER NATIONAL FOREST, 1.5 MILES NORTH OF FORT HOWES RANGER 

 STATION, 0.5 MILE WEST OF OTTER CREEK ROAD, NW OF STAG ROCK. 



Element occurrence data: 



CA. 12 50 PLANTS, IN 4 SUBPOPULATIONS ; FLOWERING. 



General site description: 



ERODING HILLSIDES AND KNOLLS, IN SILTY-CLAY DERIVED SOILS; 

 OPEN SOIL, BENEATH PINUS PONDEROSA AND JUNIPERUS SCOPULORUM, 

 WITH ARTEMISIA TRIDENTATA. 



Land owner/manager: 



CUSTER NATIONAL FOREST, ASHLAND RANGER DISTRICT 



Information source: / 



SCHASSBERGER, L.A. 1988. FIELD SURVEY, CUSTER NATIONAL FOR- 

 EST, 13-20 MAY. 



Element Occurrence Record - Astragalus barrii 

 Montana Natural Heritage Program 



