February 6, 1996 



MONTANA NATURAL HERITAGE PROGRAM 



Element Occurrence Record 



Scientific Name: ASTRAGALUS TERMINALIS 

 Common Name: RAILHEAD MILKVETCH 



•Global rank: G3G4 Forest Service status: 

 State rank: S2 Federal Status: 



Element occurrence code: PDFAB0F8U0 . 007 

 Element occurrence type: 



Survey site name 



EO rank 



EO rank comments 



MADISON BENCH 



County: MADISON 



USGS quadrangle: GRANITE MOUNTAIN 



Township: Range: Section: TRS comments: 

 OlOS OOIE 06 S2 



Precision: S 



Survey date: 1990-07-19 Elevation: 5810 



First observation: 1990 Slope/aspect: 0-30% / LEVEL, WEST 



Last observation: 1995-07-26 Size (acres): 20 



Location: 



FROM CAMERON TAKE HWY 287 SOUTH 14 MILES TO BLM RECREATION AREA. 

 CONTINUE SOUTH 0.25 MILE. SITE IS ON EAST SIDE OF HWY JUST EAST OF 

 FENCE. 



Element occurrence data: 



1995: 2 NEW SUBPOPULATIONS , 1000-10000 PLANTS, 80% WITH MATURE FRUIT, 

 20% VEGETATIVE. 1990: 51-100 PLANTS IN MATURE FRUIT; ONLY SMALL AREA 

 SURVEYED, FULL EXTENT OF OCCURRENCE IS UNPCNOWN. 



General site description: 



DRY, OPEN ALLUVIAL BENCHES. COBBLY ALLUVIUM PARENT MATERIAL, SANDY, 

 ROCKY SOIL. FESTUCA IDAHOENSIS/STIPA COMATA COMMUNITY. ASSOCIATED 

 SPECIES: POA SANDBERGII, ARTEMISIA FRIGIDA, ASTRAGALUS ADSURGENS , 

 STEPHANOMERIA SPINOSA, SELAGINELLA DENSA, ELYMUS SPICATUS, ANTENNARIA 

 MICROPHYLLA, BOUTELOUA GRACILIS, CHRYSOPSIS VILLOSA, CHRYSOTHAMNUS 

 VISCIDUS, KOELERIA MACRANTHA. 



Land owner/manager: 



PRIVATELY OWNED LAND (INDIVIDUAL OR CORPORATE) 

 BLM: BUTTE DISTRICT, DILLON RESOURCE AREA 



Comments : 



RANGE CONDITION INDICATES LIGHT GRAZING. SITE SURVEY SUMMARY ON FILE 

 AT MTHP. HEAVILY GRAZED AREAS OUTSIDE OF FENCE AND CATTLE GUARDS HAVE 

 NO PLANTS. SUBPOPULATION JUST ABOVE PICNIC AREA IS HEAVILY BROWSED BY 

 GAME. CENTAUREA IIACULOSA INVADING POPULATION AREA. 



Information source: LESICA, PETER. DIVISION OF BIOLOGICAL SCIENCES, 

 UNIVERSITY OF MONTANA, MISSOULA, MX 59812. PHONE 

 406/728-8740. 



Specimens: LESICA, P. (5190). 1990. MONTU. 



VANDERHORST, J. (5479). 1995. MONTU. 



