March 1, 1996 



MONTANA NATURAL HERITAGE PROGRAM 

 Element Occurrence Record 



Scientific Name: ASTRAGALUS BARRII 

 Common Name: BARR'S MILKVETCH 



Global rank: G3 Forest Service status: SENSITIVE 



State rank: S3 Federal Status: 3C 



Element occurrence code: PDFAB0F150 . 010 ID: Y 



Element occurrence type: 



Survey site name: STAG ROCK KNOLLS 



EO rank: B 

 EO rank comments: GRAZED SITE CLOSE TO ROAD. 



County: POWDER RIVER 



USGS quadrangle: FORT HOWES 



Township: Range: Section: TRS comments: 

 006S 045E 12 SW4 ; 13 NW4 



Precision: S 



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. 



clement occurrence data: 



CA. 1250 PLANTS, IN 4 SUBPOPULATIONS; FLOWERING. 



General site description: 



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

 BENEATH PINUS PONDEROSA, JUNIPERUS SCOPULORUM, WITH ARTEMISIA 



TRIDENTATA. 



Land owner /manager : 



CUSTER NATIONAL FOREST, ASHLAND RANGER DISTRICT 



Information source: SCHASSBERGER, L. S. 1988. [FIELD SURVEYS IN POWDER 

 RIVER AND ROSEBUD COS. OF 12-21 MAY (ASTRAGALUS 

 BARRII) . ] 



Specimens: SCHASSBERGER, L. A. (176, 177, 180). 1988. MONTU. 



