ASTRAGALUS BARRII 

 BARR'S MILK-VETCH 



Element occurrence code: PDFAB0F150 . 013 



Global rank: G3 Forest Service status: SENSITIVE LIST 

 State rank: S3 



Survey site name: STAG ROCK CLIFF TOPS 

 County: Powder River 



USGS quadrangle: FORT HOWES 



Township-range: 006S045E Section: 13 NE4 

 Township-range comments: T6S R4 6E, Sec 18 SW4 



Survey date: 1988-05-19 Elevation: 3340 

 First observation: 1988 Slope/aspect: 



Last observation: 1988-05-19 Size (acres) : 45 



Location: 



CUSTER NATIONAL FOREST, 1.5 MILES NORTH OF FORT HOWES RANGER 

 STATION, 0.2 5 MILE WEST OF OTTER CREEK ROAD, SW OF STAG 

 ROCK. 



Element occurrence data: 



CA. 1750 PLANTS IN 3 SUBPOPULATIONS SCATTERED ALONG CLIFF- 

 LINE; LESS THAN 10 PERCENT IN FLOWER; LARGE MATS. 



General site description: 



ERODING CLIFF-LINES IN SILTY-CLAY SOILS, BENEATH MODERATE 

 COVER OF PINUS PONDEROSA AND JUNIPERUS SCOPULORUM, WITH 

 CALAMOVILFA LONGIFOLIA AND ANDROPOGON SCOPARIUS. 



Land owner/manager: 



CUSTER NATIONAL FOREST, ASHLAND RANCHER DISTRICT 



Information source: 



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

 EST, 13-20 MAY. 



Element Occurrence Record - Astragalus barn" i 

 Montana Natural Heritage Program 



