February 6, 199S 



MONTANA NATURAL HERITAGE PROGRAM 

 Element Occurrence Record 



46 



Scientific Name: PHACELIA INCANA 

 Common Name: HOARY PHACELIA 



Global rank: G3G4 

 State rank: SI 



Forest Service status: 

 Federal Status: 



Element occurrence code: 

 Element occurrence type: 



PDHYD0C270.007 



Survey site name 



EO rank 



EO rank comments 



CLARK CANYON RESERVOIR 



POPULATION MAY HAVE YET TO BECOME WELL-ESTABLISHED 

 IN POTENTIAL HABITAT. 



County: BEAVERHEAD 



USGS quadrangle: GARFIELD CANYON 



Township: Range: Section: TRS comments: 

 OlOS OlOW 6 NE4NW4 



Precision 



Survey date 



First observation 



Last observation 



1995-07-21 Elevation: 6050 - 

 1995-07-21 Slope/aspect: 15-25% / SOUTH 

 1995-07-21 Size (acres) : 



Location: 



CA. 6.5 MILES NORTHWEST OF RED ROCK, 

 CLARK CANYON RESERVOIR. 



0.75 MILE NORTH OF NORTH SHORE OF 



Element occurrence data: 



ONLY 1 HIGHLY LOCALIZED POPULATION OF OVER 200 PLANTS WAS FOUND IN AN 

 AREA OF 10 X 10 M. PLANTS WERE IN A WIDE RANGE OF PHENOLOGY, THOSE IN 

 THE OPEN TURNING RED AND WITHERING, WHILE THOSE UNDER CERCOCARPUS WERE 

 GREEN, MORE ROBUST, AND INCLUDED MANY THAT STILL HAD FLOWERS. 



General site description: 



EXPOSED LIMESTONE TALUS TO COBBLER RIDGESLOPE AND MIDSLOPE POSITION, 

 ON ABRUPT OUTCROPS ABOVE CANYON CREEK RESERVOIR. MADISON GROUP PARENT 

 MATERIAL. IN CERCOCAJIPUS LEDIFOLIUS/AGROPYRON SPICATUM HABITAT TYPE; 

 ALSO ASSOCIATED WITH GUTIERRIZIA SAROTHRAE, PENSTEMON AVIDUS, ERIGERON 

 TWEEDYI, ORYZOPSIS HYMENOIDES, CHENOPODIUM (WATSONII), ARENARIA 

 KINGII, ALLIUM TEXTILE, OROBANCHE LUDOVICIANA, EUROTIA LANATA. 



Land owner/manager: 



CLARK CANYON RESERVOIR 



BLM: BUTTE DISTRICT, DILLON RESOURCE AREA 



Comments : 



SURVEYED BY B. HEIDEL. HEAVY DISTURBANCE BY MULE DEER BROWSING AND 

 SCAT. 



Information source: HEIDEL, BONNIE. [BOTANIST] MONTANA NATURAL 



HERITAGE PROGRAM, 1515 EAST SIXTH AVENUE, P.O. BOX 

 201800, HELENA, MT 59620-1800. WORK: 406/444-3009. 



Specimens: HEIDEL, B. (1401). 1995. MONTU. 



