MONTANA NATURAL HERITAGE PROGRAM 

 Element Occurrence Record 



Scientific Name: THLASPI PARVIFLORUM 

 Common Name: SMALL-FLOWERED PENNYCRESS 



Global rank: G3 Forest Service status: SENSITIVE 

 State rank: S2 Federal Status: 



Element occurrence code: PDBRA2P050. 008 

 Element occurrence type: 



Survey site name: MOUNT HUMBUG 



EO rank: 

 EO rank comments: 



County: SILVER BOW 



USGS quadrangle: MOUNT HUMBUG 



Township/Range Section: TRS Note: 



001N007W 31 NE4SW4, SE4NW4 



Survey date: Elevation: 7300 - 7350 



First observation: 1992-06-26 Slope/aspect: 5% / SOUTHEAST 

 Last observation: 1992-06-26 Size (acres) : 3 



Location: 



HIGHLAND MOUNTAINS SOUTH OF BUTTE. SITE IS AT JUNCTION OF HIGHLAND 

 ROAD (FS RD 84) AND CAMP CREEK ROAD (FS RD 8520) ON WEST EDGE OF 

 LODGEPOLE. 



Element occurrence data: 



100-1,000 INDIVIDUALS, FRUITING, EVIDENCE OF SEED DISPERSAL. 



General site description: 



OPEN EXPOSURE ON STRAIGHT TERRACE; MOIST AREA ON RESIDUAL MOUNTAIN 

 SLOPES, SILTY SOIL OF ALLUVIUM PARENT MATERIAL. ASSOCIATED DOMINANT 

 SPECIES: POTENTILLA FRUTICOSA, POA PRATENSIS, TARAXACUM OFFICINALE. 

 ADDITIONAL ASSOCIATED SPECIES: BROMUS CARINATUS, POTENTILLA GRACILIS, 

 ERIGERON GRACILIS. 



Land owner/manager: 



DEERLODGE NATIONAL FOREST, BUTTE RANGER DISTRICT 

 PRIVATELY OWNED LAND (INDIVIDUAL OR CORPORATE) 



Comments: 



ROADS, LIVESTOCK AND ABUNDANT GOPHER ACTIVITY. ECODATA PLOT #92PL104 



Information source: 



LESICA, P. DIVISION OF BIOLOGICAL SCIENCES, UNIV. OF MONTANA, 

 MISSOULA, MT 59812. 



Specimens: 

 | LESICA, P. (5723). 1992. MONTU 



