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ELEMENT OCCURRENCE RECORD 

 Astragalus molybdenus (Leadville milk-vetch) 



Occurrence number: 006 



Global rank: G3 Forest Service status: SENSITIVE LIST 

 State rank: SI USFWS Status: NONE 



Survey site name: ROUTE CREEK PASS 



EO rank: B 

 EO rank comments: LARGE COLONIES, BUT SITE IS TRAVERSED BY 

 A HIKING TRAIL. 



County: TETON 



USGS quadrangle: OUR LAKE 



Township-range: 025N OlOW Section: 36, SE4 



Survey date: 1989-08-22 Elevation: 7263 



First observation: 1989 Slope/aspect: 0-15% / E, NE, NW, 

 LEVEL 



Last observation: 1989-08-23 Size (acres) : 2 



Location: 



SAWTOOTH RANGE, ROUTE CREEK PASS, ON DIVIDE BETWEEN MIDDLE 



FORK NORTH FORK TETON RIVER AND ROUTE CREEK, LEWIS & CLARK N.F. TRAIL 



#108. 



Element occurrence data: 



ONE POPULATION; EXTENSIVE VEGETATIVE SPREADING, BUT LITTLE FLOWERING 

 AND FRUITING; SITE IS TRAVERSED BY A MODERATELY-USED PACK TRAIL; 

 POPULATION SIZE DIFFICULT TO ESTIMATE. 



/ 



General site description: 



SUBALPINE AREA, ON GRAVELLY LIMESTONE SUBSTRATE; WITH DRYAS 

 OCTOPETALA, POTENTILLA FRUTICOSA, JUNIPERUS COMMUNIS, ZIGADENUS 

 ELEGANS, ANTENNARIA AROMATICA, ANDROSACE LEHMANNIANA, SMELOWSKIA 

 CALYCINA, HEDYSARUM SULPHURESCENS , CAMPANULA ROTUNDIFOLIA , DOUGLASIA 

 MONTANA, AQUILEGIA JONESII. 



Land owner/manager: 



BOB MARSHALL WILDERNESS AREA 



LEWIS & CLARK NATIONAL FOREST, ROCKY MOUNTAIN RANGER DISTRICT 



Comments : 



VOUCHERS-SCHASSBERGER, L.A. (353) AND J.S. SHELLY, NY, MONT, 1989; 

 BORDERS WATERSHED 10030104. 



Information source: 



SHELLY, J.S. 1989. FIELD SURVEYS IN TETON COUNTY, 7-10, 21-23, AND 

 28-30 AUGUST. 



Montana Natural Heritage Program 



