Scientific Name: ELYMUS CINEREUS PA 

 Common Name: BASIN WILDRYE ASSOCIATION 



Global rank: G4 

 State rank: S2? 



Forest Service status: 

 Federal Status; 



Element occurrence code: C5B1CFABA0 . 001 



Survey site name: MAIDEN EXCLOSURE - NORTHWEST 



EO rank: BC 

 EO rank comments: SITE APPEARS TO HAVE BEEN HEAVILY GRAZED 



PRIOR TO EXCLOSURE ESTABLISHMENT IN 

 1984. 



County: BEAVERHEAD 



USGS quadrangle: MELROSE 



Township: OOIS Range: 009W Section: 32 

 Township-range comments: NE4NE4 



Precision: 



Survey date: 



First observation: 



Last observation: 



1991-08-20 



1991 



1991-08-20 



Elevation: 5325 



Slope/aspect: 2% / NORTHEAST 

 Size (acres) : 1 



Location: 



FROM THE MOOSE CREEK ROAD EXIT (#99) ON INTERSTATE 15, PROCEED NORTH 

 AND WEST ON FRONTAGE ROAD 0.5 MILE TO JUNCTION WITH A GRAVEL ROAD. 

 TAKE THIS GRAVEL ROAD SOUTH 1.2 MILES TO A Y INTERSECTION. GO LEFT AND 

 RIGHT CA. 1 MILE TO A BRIDGE CROSSING THE RIVER. CROSS THE BRIDGE. 

 EXCLOSURE IS TO THE RIGHT. 



Element occurrence data: 



WITHIN PLOT, 12 SPECIES OBSERVED. DOMINANTS INCLUDE: ELYMUS CINEREUS 

 (98% CANOPY COVER), JUNCUS BALTICUS (10%), KOELERIA CRISTATA (1%), 

 MUHLENBERGIA CUSPIDATA (1%), AND POA PRATENSIS (10%). COMPLETE LIST ON 

 FILE AT MONTANA NATURAL HERITAGE PROGRAM. 



General site description: 



ALLUVIAL TERRACES; PLOT POSITION IS TERRACE IN WIDE VALLEY BOTTOM. 

 GRAVELLY ALLUVIUM PARENT MATERIAL AND FLUVENTIC HAPLOBOROLL SOIL 

 SUBGROUP. GROUND COVER: BARE SOIL (TRACE) , TOTAL COARSE FRAGMENTS 

 (0%) . 



Land owner/manager: 



BLM: BUTTE DISTRICT, HEADWATERS RESOURCE AREA 

 PRIVATELY OWNED LAND (INDIVIDUAL OR CORPORATE) 



Comments : 



MTNHP PLOT #91RD050. SURVEY CONDUCTED BY R. L. DEVELICE. EXCLOSURE 

 ESTABLISHED IN 1984 (PERS. COMM., JACK JONES, BLM, BUTTE). SPECIES 

 RICHNESS IS LIKELY LOW DUE TO INTENSE COMPETITION WITH ELYMUS 

 CINEREUS. 



Information source: 



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

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



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