MONTANA NATURAL HERITAGE PROGRAM 

 Element Occurrence Record 



Scientific Name: BALSAMORHIZA MACROPHYLLA 

 Common Name: LARGE-LEAFED BALSAMROOT 



Global rank: G3G5 

 State rank: SI 



Forest Service status: 

 Federal Status: 



SENSITIVE 



Element occurrence code: PDAST11070 . 002 



Element occurrence type: 



Survey site name: ODELL CREEK 



EO rank: A 



EO rank comments: LARGE POPULATION IN EXCELLENT CONDITION HABITAT. 



County: BEAVERHEAD 



USGS quadrangle: SLIDE MOUNTAIN 



Township: Range: Section: TRS comments: 



015S 002W 13 N2, NE4SE4; 12 S2SE4 



015S OOIW 18 SW4NW4, NW4SW4 



Precision: S 



Survey date: 1992-07-05 



First observation: 1992-07-05 



Last observation: 1992-07-05 



Elevation: 7500 - 7920 

 Slope/aspect: 0-15% / VARIED 

 Size (acres) : 160 



Locat ion : 



CENTENNIAL MOUNTAINS, CA. 4 MILES UP ODELL CREEK TRAIL SOUTH TO 

 CONTINENTAL DIVIDE RIDGES. 



Element occurrence data: 



5,000-10,000 PLANTS, NOTABLY VIGOROUS AND MANY-FLOWERED. IN FRUIT AND 

 VERY LATE FLOWER. COMMON OVER LARGE AREA. 



General site description: 



SUBALPINE RIDGES CONTIGUOUS WITH CONTINENTAL DIVIDE; IN BROAD 

 LUXURIANT MEADOWS DOMINATED BY FESTUCA SCABRELLA. ASSOCIATED SPECIES: 

 LIGUSTICUM FILICINUM, GERANIUM VISCOSISSIMUM, ARTEMISIA TRIDENTATA, 

 MELICA SPECTABILIS, AGASTACHE URTICIFOLIA, PERIDERIDIA GAIRDNERI , 

 POTENTILLA GRACILIS. 



Land owner/manager: 



U.S. SHEEP EXPERIMENT STATION 



Comments: 



THERE IS A HISTORIC COLLECTION OF THIS SPECIES FROM THE CENTENNIAL 

 MOUNTAINS IN THIS AREA. POPULATION SPANS STATE LINE ALONG CONTINENTAL 



orviDE. 



Inforntion source; 



HEIDEL, B. L. 1992. [FIELD SURVEY TO CENTENNIAL 

 MOUNTAINS OF 5 JULY. ] 



Specimens: HEIDEL, B. (754). 1992. MONT. 



