February 6, 1996 



42 



MONTANA NATURAL HERITAGE PROGRAM 

 Element Occurrence Record 



Scientific Name: ASTRAGALUS TERMINALIS 

 Common Name: RAILHEAD MILKVETCH 



Global rank: 

 State rank: 



G3G4 

 S2 



Forest Service status: 

 Federal Status: 



Element occurrence code; 

 Element occurrence type; 



PDFAB0F8U0.010 



Survey site name 



EG rank 



EO rank comments 



MADISON RIVER 



A 



LARGE, EXTENSIVE POPULATION. 



County: MADISON 



USGS quadrangle: BUCKS NEST 



Township: Range: Section: TRS comments: 



009S OOIW 12 NE4SW4; 13 SW4 ; 24 NW4 ; 23 NE4 



Precision 



Survey date 



First observation 



Last observation 



1993-05-20 

 1995-08-31 



Elevation: 5560 - 5740 

 Slope/aspect: 0-60% / EAST 

 Size (acres) : 



Location : 



CA. 15 MILES SOUTHEAST OF VIRGINIA CITY ALONG I4ADIS0N RIVER. 



Element occurrence data: 



COMMON OVER LARGE AREAS ON BOTH SIDES OF RIVER, REPRESENTING >10,000 

 PLANTS IN VIGOROUS CONDITION. CA. 50% OF PU^TS IN MATURE FRUIT AND 

 50% VEGETATIVE IN 1995. 



General site description: 



OPEN ALLUVIAL BENCHES AND FANS ALONG THE MADISON RIVER VALLEY COVERED 

 BY DRY GRASSLAND DOMINATED BY COMBINATIONS OF AGROPYRON SPICATUM, 

 STIPA COMATA, AND SELAGINELLA DENSA. STIPA COMATA/SELAGINELLA DENSA 

 HABITAT TYPE. OTHER ASSOCIATED SPECIES INCLUDE: ARTEMISIA FRIGIDA, 

 ANTENNARIA MICROPHYLLA, SENECIO CANUS , GRINDELIA SQUARROSA, 

 SPHAERALCEA COCCINEA. 



L?nd owner/manager: 



MADISON-WALL CREEK WILDLIFE MANAGEMENT AREA 

 PRIVATELY OWNED LAND (INDIVIDUAL OR CORPORATE) 

 BLM: BUTTE DISTRICT, DILLON RESOURCE AREA 

 STATE LAND - UNDESIGNATED 



OBSERVED BY BONNIE HEIDEL ON 31 AUGUST 1995 (SECTIONS 13 AND 24 J M 

 VANDERHORST ON 25 JULY 1995 (SECTIONS 23 AND 24), AND PETER LESICA IN 

 1993 (SECTION 12) . ADDITIONAL POTENTIAL HABITAT ON STATE LANDS TO THE 

 SOUTH. A FEW CATTLE IN AREA; LIVESTOCK GRAZING REGIME INFORMATION 

 NEEDED. 



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: VANDERHORST, J. (5470). 1995. MONT. 



LESICA, P. (5914). 1993. SPECIMEN #11844^ 



