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. 007 

 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: 

 001S008W 01 W2NW4 



Survey date: Elevation: 6950 



First observation: 1992-06-30 Slope/aspect: 5% / NORTHWEST 

 Last observation: 1992-06-30 Size (acres) : 5 



£ Location: 



W HIGHLAND MOUNTAINS SOUTH OF BUTTE. FROM JUNCTION OF HIGHLAND ROAD (FS 



RD 84) AND CAMP CREEK ROAD (FS RD 8520), TAKE HIGHLAND ROAD WEST CA. 



1.2 MILES. SITE IS 0.25 MILES SOUTH ON SOUTH SIDE OF CREEK. 



Element occurrence data: 



1,000-10,000 INDIVIDUALS, IN FRUIT; EVIDENCE OF SEED DISPERSAL. 



General site description: 



OPEN EXPOSURE ON STRAIGHT BOTTOM SLOPE, MOIST AREA ON FLOODPLAIN IN 

 WIDE VALLEY, SILTY SOIL, ALLUVIUM PARENT MATERIAL. ASSOCIATED DOMINANT 

 SPECIES: POTENTILLA FRUTICOSA, JUNCUS BALTICUS, POA JUNCIFOLIA. 

 ADDITIONAL ASSOCIATED SPECIES: POA PRATENSIS, TARAXACUM OFFICINALE, 

 POTENTILLA DIVERSIFOLIA. 



Land owner/manager: 



DEERLODGE NATIONAL FOREST, BUTTE RANGER DISTRICT 



Comments: 



EXOTICS, EVIDENCE OF LIVESTOCK GRAZING. ECODATA PLOT #92PL112. 



Information source: 



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

 MISSOULA, MT 59812. 



Specimens: 



