26 



ELEMENT OCCURRENCE RECORD 

 Astragalus molybdenus (Leadville milk-vetch) 



Occurrence number: 001 



Global rank; 

 State rank: 



G3 

 SI 



Survey site name: 



EO rank: 



EO rank comments: 



Forest Service status: SENSITIVE LIST 

 USFWS Status: NONE 



MOUNT WRIGHT 



A 



RELATIVELY LARGE POPULATIONS, 



UNDISTURBED ALPINE AREAS. 



County: TETON 



USGS quadrangle: MOUNT WRIGHT 



Township-range: 026N OlOW Section: 25, S2 ; Section: 36, NW4 



Survey date: 1989-08-08 

 First observation: 1982 

 Last observation: 1989-08-29 



Elevation: 8100 



Slope/aspect: 0-35% / N, E, NE, LEVEL 



Size (acres) : 25 



Location : 



SAWTOOTH RANGE, EAST AND NORTHEAST SLOPES OF MOUNT WRIGHT, 

 NORTH FORK TETON RIVER DRAINAGE. 



Element occurrence data: 



SIX SUBPOPULATIONS ; EXTENSIVE VEGETATIVE SPREADING, BUT VERY FEW 

 PLANTS FLOWERING AND FRUITING; POPULATION SIZE DIFFICULT TO ESTIMATE. 



General site description: 



ALPINE AND SUBALPINE AREAS, LIMESTONE SUBSTRATES; WITH DRYAS 

 OCTOPETALA, OXYTROPIS PODOCARPA, BUPLEURUM AMERICANUM, SMELOWSKIA 

 CALYCINA, SIBBALDIA PROCUMBENS . 



Land owner/manager: 



BOB MARSHALL WILDERNESS AREA 



LEWIS & CLARK NATIONAL FOREST, ROCKY MOUNTAIN RANGER DISTRICT 



Comments : 



VOUCHERS - SHELLY, J.S. (1592), L. SCHASSBERGER, A. EVENDEN, AND J. 

 PIERCE, RM, 1989; SHELLY, J.S. (1593) AND A. EVENDEN, MONT, 1989. 



Information source: 



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

 28-30 AUGUST. 



Montana Natural Heritage Program 



