MONTANA NATURAL HERITAGE PROGRAM 

 Element Occurrence Record 



Scientific Name: THELYPODIUM SAGITTATUM SSP SAGITTATUM 

 Common Name: SLENDER THELYPODY 



Global rank: G3G4T? Forest Service status: 

 State rank: S2 Federal Status: 



Element occurrence code: PDBRA2N0E2 . 004 

 Element occurrence type: 



Survey site name: TRAIL HOLLOW EXCLOSURE 



EO rank: B 

 EO rank comments: 28 YEAR EXCLOSURE, BUT ANNUAL WEEDS PRESENT. 



County: BEAVERHEAD 



USGS quadrangle: DIXON MOUNTAIN 



Township: Range: Section: TRS comments: 

 013S OlOW 32 SW4NE4 



Precision: S 



Survey date: 1993-07-01 Elevation: 6600 



First observation: 1988-07-18 Slope/aspect: LEVEL 



Last observation: 1993-07-01 Size (acres) : 1 



Location: 



FOLLOW BIG SHEEP CREEK ROAD SOUTHWEST FROM DELL TO MUDDY CREEK ROAD 

 AND GO NORTH CA . 3 MILES TO TRAIL HOLLOW. TURN LEFT (SOUTH) AND GO CA. 

 0.12 5 MILE TO MUDDY CREEK. EXCLOSURE IS EAST OF ROAD ON CREEK; PLANTS 

 ON NORTH SIDE OF CREEK. 



Element occurrence data: 



50 PLANTS IN EXCLOSURE, 90% FRUITING, 10% FLOWERING AND FRUITING. 

 MATURE SILIQUES ON ALL PLANTS. 



General site description: 



28-YEAR EXCLOSURE IN HEAVILY -GRAZED DRAINAGE. OPEN, DRY BOTTOMLANDS, 

 ALLUVIAL PARENT MATERIAL, FINE, DRY CLAY SOIL. ASSOCIATED SPECIES: 

 ARTEMISIA TRIDENTATA, A. FRIGIDA, POA SP . , ELYMUS LANCEOLATUS, THLASPI 

 ARVENSE (ABUNDANT) . 



Land owner/manager: 



BLM: BUTTE DISTRICT, DILLON RESOURCE AREA 



Comments: 



SPECIES OBSERVED IN AREA BY LACKSCHEWITZ , ET AL. IN 1988, EXCLOSURE 

 SURVEYED IN 1993; PLANTS SEEN OUTSIDE OF EXCLOSURE NOT SURVEYED. 



Information source: VANDERHORST, J. 1993. [MTNHP FIELD SURVEYS IN THE 

 TENDOY MOUNTAINS FOR THE BUREAU OF LAND 

 MANAGEMENT. ] 



Specimens: VANDERHORST, J. (5004). 1993. MONT. 



LACKSCHEWITZ, K. (11538) ET AL. 1988. SPECIMEN #109534. 

 MONTU. 



