Element Occurrence Record 5: 



Howellia aquatilis 



Occurrence number: 048 



Global rank: G2 Forest Service status: SENSITIVE LIST 

 State rank: S2 Federal Status: CI 



Survey site name: LINDBERGH LAKE 



EO rank: C 

 EO rank comments: MED. -SIZED POPULATION; SURROUNDING AREA 



DISTURBED BY LOGGING 



County: MISSOULA 



USGS quadrangle: CYGNET LAKE 



Township-range: 019N016W Section: 18 Precision: S 

 Township-range comments: SW4NE4NW4 



Survey date: 1987-07-10 Elevation: 4215 

 First observation: 1987 Slope/aspect: LEVEL 



Last observation: 1990-07-09 Size (acres) : 1 



Location: 



•SWAN VALLEY, 0.5 AIR MILES SOUTH OF SWAN RIVER, 1.89 AIR MILES WEST OF 

 ST. HWY 83. 



Element occurrence data: 



1990: PLANTS OBSERVED (MANY DEAD SEDGE PLANTS SOUTH END OF POND, 

 DEAD TYPHA IN NORTH END, WATER APPEARED DEEPER THAN IN 1989); 1989: 

 CA: 200 PLANTS; 1987: EST. 250 PLANTS; ADJACENT AREAS DISTURBED BY 

 CLEARCUT LOGGING. 



General site description: 



GLACIAL POTHOLE POND; WITH CAREX VESICARIA, SIUM SUAVE, EQUISETUM 

 FLUVIATILE, TYPHA LATIFOLIA. 



Land owner/manager: 



FLATHEAD NATIONAL FOREST, SWAN LAKE RANGER DISTRICT 



Comments : 



VOUCHER - SHELLY, J.S. (1366) AND L. CAMPBELL, 1987, MONTU. 



Information source: 



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

 17-19 JULY (HOWELLIA AQUATILIS) . 



Montana Natural Heritage Progra 



