MONTANA NATURAL HERITAGE PROGRAM 

 Element Occurrence Record 



'■"Scientific Name: ARABIS FECUNDA 

 Common Name: SAPPHIRE ROCKCRESS 



Global rank: G2 Forest Service status: SENSITIVE 

 State rank: S2 Federal Status: C2 



Element occurrence code: PDBRA06290 . 017 

 Element occurrence type: 



Survey site name: SOUTH FORK TUCKER CREEK 



EO rank: 

 EO rank comments: 



County: SILVER BOW 



USGS quadrangle: TUCKER CREEK 



Township/Range Section: TRS Note: 

 001N008V? 31 N2 



Survey date: 1992-06-27 Elevation: G720 - 6980 

 First observation: 1992-06-27 Slope/aspect: 50% / SOUTHWEST 



Last obseirvation: 1992-06-27 Size (acres) : 25 



^; 



cation: 



FROM DIVIDE (TOWN) TAKE FRONTAGE ROAD NORTH CA . 5 MILES. GO EAST UNDER 

 1-15 TO RANCH. FOLLOW DIRT ROAD TO NORTHEAST CA. 4 MILES, KEEPING TO 

 RIGHT AT FORKS, TO SITE ON EITHER SIDE OF SOUTH FORK TUCKER CREEK, CA. 

 1 MILE NORTHEAST OF RESERVOIR. 



Element occurrence data: 



10,000+ INDIVIDUALS; FRUITING, SEED DISPERSAL. 



General site description: 



PARTIALLY SHADED EXPOSURE ON CONVEX SLOPE; DRY AREA ON RESIDUAL LOWER 

 MOUNTAIN SLOPE. SANDY SOIL OF CALCAREOUS METASEDIMENT PARENT I-LATERIAL. 

 ASSOCIATED DOMINANT SPECIES: CERCOCARPUS LEDIFOLIUS, JUNIPERUS 

 SCOPULORUM, AGROPYRON SPICATUM. ADDITIONAL ASSOCIATED SPECIES: 

 HAPLOPAPPUS ACAULIS, CYMOPTERUS BIPINNATUS. DEER SCAT PRESENT. 



Land owner/manager: 



BLI-I: BUTTE DISTRICT, HEADWATERS RESOURCE AREA 

 HUMBUG SPIRES PRIMITIVE AREA 



Comments : 



ECODATA PLOT NUMBER 92PL106. 



Information source: 



LESICA, P. DIVISION OF BIOLOGICAL SCIENCES, UNIV. OF MONTANA, 

 ^ MISSOULA, MT 59812. 



bpecimens : 



LESICA, P. (5729). 1992. MONTU.' 



