February 6, 1996 



MONTANA NATURAL HERITAGE PROGRAM 

 Element Occurrence Record 



Scientific Name: ASTRAGALUS SCAPHOIDES 

 Common Name: BITTERROOT MILKVETCH 



'Global rank: G3 

 State rank: SI 



Forest Service status: PROPOSED SENSITIVE 

 Federal Status: 3C 



Element occurrence code; 

 Element occurrence type; 



PDFAB0F7V0.015 



Survey site name 



EO rank 



EO rank comments 



HENNEBERRY RIDGE 



CD 



SMALL POPULATION IN DEGRADED HABITAT. 



County: BEAVERHEAD 

 USGS quadrangle: DALYS 



Township: Range: Section: TRS comments: 

 009S OlOW 30 NE4 



Precision 



Survey date 



First observation 



Last observation 



1995-06-17 Elevation: 6100 - 6120 

 1995-06-17 Slope/aspect: 0-5% / - 

 1995-06-17 Size (acres): 10 



Location: 



CA. 3 MILES NORTH OF CLARK CANYON. ACCESS FROM HENNEBERRY RIDGE. 



Element occurrence data : 



OVER 50 PLANTS, ALL IN NON-FLOWERING CONDITION. 



General site description: 



MIDSLOPE BASIN SOUTHEAST OF HENNEBERRY RIDGE IN SAGEBRUSH FOOTHILLS ON 

 GENTLE BOTTOMS OVER IGNEOUS BEDROCK. DOMINATED BY ARTEMISIA TRIDENTATA 

 AND AGROPYRON SPICATUM. ASSOCIATED WITH ACHILLEA MILLEFOLIUM, DRABA 

 NEMOROSA, ANTENNARIA MICROPHYLLA, CHRYSOTHAMNUS VISCIDIFLORUS . THE 

 BASIN LIES BELOW Mi EMPTY IMPOUNDMENT AND IS GRAZED EARLY IN SEASON. 



Land owner/manager: 



BLM: BUTTE DISTRICT, DILLON RESOURCE AREA 



C Timents : 



EARLY SEASON GRAZING HAS DEGRADED COMPOSITION. THE SITE LIES BELOW AN 

 IMPOUNDMENT . 



Information source: HEIDEL, BONNIE. [BOTANIST] MONTANA NATURAL 



HERITAGE PROGRAM, 1515 EAST SIXTH AVENUE, P.O. BOX 

 201800, HELENA, MT 59620-1800. WORK: 406/444-3009. 



Specimens: 



