Scientific Name: PSEUDOTSUGA MENZIESII/CERCOCARPUS LEDIFOLIUS PA 

 Common Name: DOUGLAS FIR/ CURL- LEAF MOUNTAIN MAHOGANY ASSOCIATION 



Global rank: G3? Forest Service status: 

 State rank: S3? Federal Status: 



Element occurrence code: C2A2BBABH0 . 001 



Survey site name: LIME GULCH SOUTH 

 EO rank: B 



EO rank comments: THE PRESENCE OF INCREASER SPECIES IS 



LIKELY THE RESULT OF HEAVY GRAZING 

 DISTURBANCE ON ADJACENT SITES, AND THE 

 NATURALLY UNSTABLE SUBSTRATE PRESENT. 



County: SILVER BOW 



USGS quadrangle: TUCKER CREEK 



Township: OOIS Range: 009W Section: 15 Precision: S 



Township-range comments: NE4NW4 



Survey date: 1991-06-10 Elevation: 5920 

 First observation: 1991 Slope/aspect: 65% / WEST 



Last observation: 1991-06-10 Size (acres) : 1 



Location: 



FROM DIVIDE (TOWN) , PROCEED EAST 1 MILE ON STATE HIGHWAY 4 3 TO 

 INTERSTATE 15. DRIVE UNDER OVERPASS AND PARK BY FENCE ON EAST SIDE OF 

 INTERSTATE. PLOT IS DUE EAST 1.25 MILES, IN FOREST JUST ABOVE THE 

 FOREST-GRASSLAND ECOTONE. 



Element occurrence data: 



WITHIN PLOT, 17 SPECIES OBSERVED. DOMINANTS INCLUDE: PSEUDOTSUGA 

 MENZIESII (10% CANOPY COVER), CERCOCARPUS LEDIFOLIUS (50%), ARTEMISIA 

 TRIDENTATA (TRACE) , AGROPYRON SPICATUM (TRACE) , AND POA SANDBERGII 

 (TRACE) . COMPLETE LIST ON FILE AT MONTANA NATURAL HERITAGE PROGRAM. 



General site description: 



RESIDUAL MOUNTAIN SLOPE; PLOT POSITION IS MID-SLOPE. GRANITE PARENT 



MATERIAL AND TYPIC USTORTHENT SOIL SUBGROUP. GROUND COVER: BARE SOIL 



(10%), TOTAL COARSE FRAGMENTS (80%). 



Land owner/manager: 



BLM: BUTTE DISTRICT, HEADWATERS RESOURCE AREA 

 HUMBUG SPIRES PRIMITIVE AREA 



Comments: 



MTNHP PLOT #91RD014. SURVEY CONDUCTED BY R. L. DEVELICE. CA. 20% OF 

 THE CERCOCARPUS LEDIFOLIUS PLANTS PRESENT ARE DEAD. DRABA DENSIFOLIA 

 PRESENT ON SITE. 



Information source: 



DEVELICE, ROBERT. [COMMUNITY ECOLOGIST]. MONTANA NATURAL HERITAGE 

 PROGRAM, 1515 EAST SIXTH AVE., HELENA, MT 59620. 



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