February 6, 1996 



MONTANA NATURAL HERITAGE PROGRAM 

 Element Occurrence Record 



Scientific Name: ASTRAGALUS SCAPHOIDES 

 Common Name: BITTERROOT MILICVETCH 



Global rank: G3 

 State rank: SI 



Forest Service status: PROPOSED SENSITIVE 

 Federal Status: 3C 



Element occurrence code: PDFAB0F7V0 . 016 

 Element occurrence type: 



Survey site name 



EO rank 



EO rank comments 



COLD SPRING CREEK 



A 



LARGE POPULATION, INTACT HABITAT. 



County: BEAVERHEAD 



USGS quadrangle: BANNACK 



Township: Range: 

 007S OllW 

 008S OllW 



Section: TRS comments: 



25 W2; 23 SE4NE4 ; 24; 25 SW4 ; 26 SE4 ; 

 10 NE4NW4, SE4SW4; 12 NE4 



3 4 NE4; 3 5 



Precision 



Survey date 



First observation 



Last observation 



1995-06-13 

 1995-06-13 

 1995-07-10 



Elevation: 5840 - 6650 

 Slope/aspect: 0-20% / - 

 Size (acres) : 120 



Location: 



CA. 12 MILES WEST OF DILLON. TRAVEL CA. 3.5 MILES SOUTH FROM DILLON ON 

 HWY 91 TO BADGER PASS EXIT. GO CA. 6.5 MILES WEST, THEN CA. 3 MILES 

 SOUTHWEST ON FS RD 1801 TO TURN ABOVE MCDOWELL SPRING. POPULATION 

 EXTENDS CA. 5.5 MILES SOUTH ALONG COLD SPRING DRAINAGE. 



Element occurrence data: 



OVER 10,000 PLANTS, APPROACHING PEAK FLOWERING 13 JUNE 1995. THE 

 POPULATION IS IN SEVERAL SUBPOPULATIONS IN DIFFERENT ELEVATION 

 SEGMENTS OF WATERSHEDS, ALMOST CONTINUOUS BETWEEN WATERSHEDS. 



General site description: 



WELL-DRAINED STREAM TERRACES AND LESS-XERIC MIDSLOPES IN ROLLING 

 FOOTHILLS, DOMINATED BY ARTEMISIA TRIDENTATA WITH ALTERNATELY FESTUCA 

 IDAHOENSIS OR AGROPYRON SPICATUM. SUBSTRATES ARE WELL-DRAINED ENTISOLS 

 OR LOAMS WITH SAND-SIZE DIABASE PARTICLES. OTHER ASSOCIATED SPECIES 

 INCLUDE: PHLOX LONGIFOLIA, LUPINUS SERICEUS, ASTER SCOPULORUM. HABITAT 

 IN GOOD TO EXCELLENT CONDITION. 



Land owner/manager: 



BLM: BUTTE DISTRICT, DILLON RESOURCE AREA 

 STATE LAND - UNDESIGNATED 



PRIVATELY OWNED LAND (INDIVIDUAL OR CORPORATE) 

 Comments : 



ALLOTMENT USED FOR WINTER GRAZING. LIMITED INVASION OF EXOTICS AND 

 INCREASERS. POPULATION BECOMES VERY SPARSE TOWARDS GRASSHOPPER CREEK 

 WHERE ITS HABITAT IS INTERRUPTED BY SPRINGS AND LIVESTOCK USE 

 INCREASERS. IT MAY BE PART OF POPULATION DOCUMENTED BY LESICA NEARBY 

 ON GRASSHOPPER CREEK. 

 Information source: VANDERHORST, J. [BOTANIST] . 1515 LAKE STREET, 

 OGDEN, UTAH 84401. 



Specimens : 



HEIDEL, B. (1338). 1995. MONT. 

 VANDERHORST, J. (5437, 5440). 1995. MONT. 



