Scientific Name: CYPERUS SCHWEINITZII 

 Common Name: SCHWEINITZ' FLATSEDGE 



Global rank: G5 Forest Service status; 

 State rank: SI Federal Status; 



Element occurrence code: PMCYP06360 . 005 

 Element occurrence type: 



Survey site name: BOXELDER CREEK 



EO rank: C 

 EO rank comments: FEW PLANTS; POOR HABITAT 



County: CARTER 



USGS quadrangle: MILL IRON 



Township: Range: Section: TRS comments: 

 OOIN 061E 18 SE4 



Precision: S 



Survey date: 1997-07-02 Elevation: 3200 - 



First observation: 1997-07-02 Slope/aspect: 10%/SE 



Last observation: 1997-07-02 Size (acres) : 1 



Location: 



HILLS ABOUT 2.25 AIR MILES EAST-SOUTHEAST OF MILL IRON, ON SOUTHEAST 

 SIDE OF SANDSTONE OUTCROPS. 



Element occurrence data: 



11 FLOWERING STEMS (RHIZOMATOUS ) IN EARLY FLOWER. 



General site description: 



AREA CONSISTS OF ROLLING UPLANDS WITH SANDSTONE OUTCROPS. PLANTS ON 

 DRY, OPEN MIDSLOPE IN SANDY SOIL OVER SANDSTONE PARENT. ON SANDSTONE 

 OUTCROP IN CALAMOVILFA LONGIFOLIA HT . ASSOCIATED PLANTS INCLUDE PINUS 

 PONDEROSA, CAREX FILIFOLIA, CALAMOVILFA LONGIFOLIA, FESTUCA OCTOFLORA, 

 BOUTELOUA GRACILIS, AND TRADESCANTIA OCCIDENTALIS . 



Land owner/manager: 



BLM: MILES CITY DISTRICT, POWDER RIVER RESOURCE AREA 



Comments : 



OBSERVED BY J. VANDERHORST. AREA GRAZED SINCE 1880'S. 



Information source: VANDERHORST, J. [BOTANIST]. P.O. BOX 1026, TROY, 

 MT 59935. 



Specimens: VANDERHORST, J. (5888). 1997. MONT. 



