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 . 002 

 Element occurrence type: 



Survey site name: PIPE ORGAN ROCK 



EO rank : B 

 EO rank comments: LARGE, DENSE POPULATION THREATENED BY WEED 

 INVASION. 



County : BEAVERHEAD 



USGS quadrangle : DALYS 



Township: Range: Section: TRS comments: 



009S 01 0W 03 E2NE4, E2SE4, S2Nri4 



Precision: S 



Survey date: 1994-06-20 Elevation: 5700 - 



First observation: 1983 Slope/aspect: 



Last observation: 1994-06-20 Size (acres) : 10 



Location: 



CA. 10 MILES SOUTH OF DILLON ON 1-15; TAKE FRONTAGE ROAD NEAR 

 GRASSHOPPER CREEK; SITE IS CA . 1 MILE SOUTH OF GRASSHOPPER CREEK. 



Element occurrence data: 



1994: >1000 PLANTS IN FLOWER. 1983: SMALL POPULATION (LESS THAN 50 

 PLANTS); MUCH DISTURBANCE BY LIVESTOCK; THERE IS AN OLD ROAD. 



General site description: 



SOUTH AND NORTH-FACING SLOPES ABOVE DRY DRAINAGES . STONY TILL SOIL . ; 

 SAGEBRUSH-BUNCHGRASS : ARTEMISIA TRIDENTATA/AGROPYRON SPICATUARTEMISIA 

 TRIPARTITA. 



Land owner /manager : 



BLM: BUTTE DISTRICT, DILLON RESOURCE AREA 

 PRIVATELY OWNED LAND (INDIVIDUAL OR CORPORATE) 



Comments : 



SITE IS IN EXCAVATED AREA AROUND STOCKPOND HEAVILY INFESTED WITH 

 CHEATGRASS, SWEETCLOVER AND HOUNDSTONGUE ; BROWSED HEADS OBSERVED. 

 SECTION 3 POPULATION NOT RELOCATED IN 1994 BY VANDERHORST. POSSIBILITY 

 SITE MISMAPPED BY LESICA IN 1983. HABITAT IN NE4 OF SECTION 3 IS 

 WETTER GRASSLAND WITHOUT SAGEBRUSH. 



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



UNIVERSITY OF MONTANA, MISSOULA, MT 59812. 



Specimens: VANDERHORST, J. (5201). 1994. MONT. 



