March 12, 19 96 



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 . 036 ID: ? 

 Element occurrence type: 



Survey site name: WILBUR CREEK 



EO rank: 

 EG rank comments: 



County: POWDER RIVER 



USGS quadrangle: HOME CREEK BUTTE 



Township: Range: Section: TRS comments: 

 003S 046E 13 NW4 



Precision: S 



Survey date: Elevation: 3540 - 3600 



First observation: 1995-06-25 Slope/aspect: 0-45% / ALL 



Last observation: 1995-06-25 Size (acres): 2 



Location: 



FROM HWY 212 EAST OF ASHLAND, TAKE WILBUR CREEK ROAD (#775) NORTH CA. 

 I 0.5 MILE. SITE IS ON BADLANDS-TYPE BUTTES AND RIDGES ON LEFT BEFORE 

 DROPPING DOWN TO WILBUR CREEK. 



Element occurrence data: 



350-400 INDIVIDUALS IN 3 SUBPOPULATIONS; VEGETATIVE. 



General site description: 



DRY, OPEN LOWERSLOPE THROUGH CREST. ASSOCIATED WITH SOME 

 SPARSELY-VEGETATED SANDSTONE OUTCROPS AND IN SMALL ERODED GULLY AT 

 BASE OF RIDGE. SANDY-SILTY SOIL, WHITISH TO SANDY IN COLOR. ASSOCIATED 

 SPECIES: HAPLOPAPPUS ARMERIOIDES, AGROPYRON SPICATUM, COMMANDRA 

 UMBELLATA, HYMENOPAPPUS POLYCEPHALUS, CAREX FILI FOLIA. 



Land owner/manager: 



CUSTER NATIONAL FOREST, ASHLAND RANGER DISTRICT 



Comments : 



OBSERVED BY H. MARRIOTT. VEGETATIVE MATERIAL ONLY; CONFORMATION IN 

 FLOWER WARRANTED. 



Information source: SENSITIVE PLANT COORDINATOR, CUSTER NATIONAL 



FOREST, 2602 FIRST AVENUE NORTH, P.O. BOX 2556, 

 BILLINGS, MT 59103. 



Specimens : 



