January 4, 1994 



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 . 003 

 Element occurrence type: 



Survey site name: ROCK QUARRY GULCH 



EO rank: B 

 EO rank comments: FAIRLY LARGE POPULATION, HABITAT NOT HEAVILY 

 DISTURBED. 



County: RAVALLI 



USGS quadrangle: MOUNTAIN HOUSE 



Township: Range: Section: TRS comments: 

 006N 019W 31 NW4SW4 



Precision: S 



Survey date: 1988-06-01 Elevation: 4850 - 



First observation: 1985 Slope/aspect: 



Last observation: 1988-06-01 Size (acres) : 5 



Location: 



ROCK QUARRY GULCH; FROM JCT. OF HWYS. 2 69 & 380, GO 2.5 MI. E. TO 

 CORNER WHERE 380 TURNS N . ; GO E. 1.5 MI. TO CHARLEYS GULCH RD., & 2 

 MI. TO CATTLEGUARD; SITE IS 2 MILES SW. 



Element occurrence data: 



CA. 800-1000+ PLANTS, ONE POPULATION; EVIDENCE OF LIGHT DISTURBANCE BY 

 CATTLE; POPULATION THREATENED BY KNAPWEED (CENTAUREA SP.) INVASION, 

 BUT SITE NOT AS WEEDY AS OTHERS IN AREA. 



General site description: 



ON LIGHT-COLORED ROCK OUTCROPS ON OPEN, S-FACING SLOPES; IN SAGEBRUSH 

 GRASSLAND NEAR LOWER TREELINE, W/ SCATTERED PINUS PONDEROSA, AGROPYRON 

 SPICATUM, HAPLOPAPPUS ARMERIOIDES. 



Land owner/manager: 



PRIVATELY OWNED LAND (INDIVIDUAL OR CORPORATE) 



Comments: 



RECENTLY DESCRIBED STATE ENDEMIC (1984). 



Information source: SHELLY, J. S. 1988. [FIELD SURVEYS IN RAVALLI 



COUNTY OF 19-20 MAY, 1-3 JUNE (ARABIS FECUNDA).] 



Specimens: LESICA, P. (3340). 1985. MONTU. 



