Element Occurrence Record 

 Howell ia aquatilis 



Occurrence number: 049 



Global rank: G2 

 State rank: S2 



Survey site name: 



EO rank: 



EO rank comments: 



Forest Service status: 

 Federal Status: 



SENSITIVE LIST 

 CI 



LINDBERGH LAKE 



C 



LARGE POPULATION; ADJACENT TO NEW 



LOGGING ROAD. 



County: MISSOULA 

 USGS quadrangle: 



CYGNET LAKE 



Township-range: 019N016W Section: 

 Township-range comments: SW4SW4SE4 



Survey date: 1987-07-10 

 First observation: 1987 

 Last observation: 1990-07-09 



07 



Precision: S 



Elevation: 4150 

 Slope/aspect: LEVEL 

 Size (acres) : 1 



Location: 



^ SWAN VALLEY, 0.16 AIR MILES SOUTH OF SWAN RIVER, 1.60 AIR MILES WEST 

 P OF ST. HWY 83. 



Element occurrence data: 



1990: 200-300 PLANTS (HIGH COVER OF LEMNA MINOR IN SOME AREAS); 1989: 



2000+ PLANTS; 1987: EST. 1500-2000 PLANTS; POND IS ON NORTH SIDE OF A 



NEWLY CONSTRUCTED LOGGING ROAD, JUST NORTH OF USFS BOUNDARY. 



General site description: 



GLACIAL POTHOLE POND; WITH CAREX ROSTRATA, C. VESICARIA, RANUNCULUS 

 GMELINII, R. AQUATILIS, ALOPECURUS AEQUALIS; POPULUS SPP. , ALNUS 

 INCANA, SALIX SPP. AROUND EDGE. 



Land owner/manager: 



PRIVATELY OWNED LAND (INDIVIDUAL OR CORPORATE) 



Comments : 



VOUCHER - SHELLY, J.S. (13 69) AND L. CAMPBELL, 1987, MONTU. pH=7.29. 



Information source: 



SCHASSBERGER, L. A. 1990. MONITORING AND FIELD SURVEYS OF 10-13 AND 

 17-19 JULY (HOWELLIA AQUATILIS) . 



Montana Natural Heritage Program 



