February 6, 1996 



MONTANA NATURAL HERITAGE PROGRAM 

 Element Occurrence Record 



Scientific Name: SPHAEROMERIA ARGENTEA 

 Common Name: CHICKEN SAGE 



Element occurrence code: PDAST8S010 . OOE 

 Element occurrence type: 



Survey site name 



EO rank 



EO rank comments 



BANNACK 



A 



NEAR-PRISTINE SITE. 



County: BEAVERHEAD 



USGS quadrangle: BANNACK 



Township: Range: Section: TRS comments: 

 008S OllW 5 SW4NW4 



Precision 



Survey date 



First observation 



Last observation 



S 



1994-06-12 Elevation: 6320 - 6440 



1994-06-12 Slope/aspect: 0-30% / WNW 



1994-06-12 Size (acres) : 40 



Location: 



SITE IS ON FIRST RIDGE NORTHEAST OF BANNACK, OVERLOOKING TOWNSITE. 



•Element occurrence data: 

 1000-10,000 PLANTS, 100% FLOWERING. 



General site description: 



DRY, OPEN RESIDUAL UPPERSLOPE AJJD RIDGE CREST. LIMESTONE PARENT 

 MATERIAL, GRAVELLY CLAY SOIL. ASSOCIATED SPECIES: ELYMUS SPICATUS, 

 CERCOCARPUS LEDIFOLIUS, PINUS FLEXILUS, ARTEMISIA FRIGIDA, HAPLOPAPPUS 

 ACAULIS, PENSTEMON ARIDUS, OXYTROPIS LAGOPUS, LINUM LEWISII, 

 DELPHINIUM BICOLOR SSP . NOVUM, TOWNSENDIA SPATHULATA, LESQUERELLA SP., 

 LOMATIUM ATTENUATUM. 



Land owner/manager: 



BLM: BUTTE DISTRICT, DILLON RESOURCE AREA 



Comments : 



THIS NEAR- PRISTINE SITE HOSTS FIVE LIMESTONE ENDEMIC PLANT SPECIES OF 

 CONCERN. BANNACK STATE PARK IS APPLYING FOR A LAND TRANSFER WHICH MAY 

 HELP PROTECT THE SITE FROM FUTURE MINING. 



Information source: VA.NDERHORST, J. [BOTANIST]. 1515 LAKE STREET, 

 OGDEN, UTAH 84401. 



Specimens: VANDERHORST, J. (5188). 1994. MONT. 



