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HOWELLIA AQUATILIS 

 WATER HOWELLIA 



Global rank: G2 Forest Service status: SENSITIVE LIST 

 State rank: S2 Federal Status: C2 



Element occurrence code: PDCAM0A01 0.007 



Survey site name: SWAN RIVER WEST 

 County: Lake 



USGS quadrangle: CILLY CREEK 



Township-range: 024N018W Section: 14 

 Township-range comments: SW4SE4SE4 



Survey date: 1987-07-01 Elevation: 3190 

 First observation: 1987 Slope/aspect: LEVEL 



Last observation: 1989-07-13 Size (acres) : 1 



Location: 



WEST SIDE OF SWAN VALLEY, 1.4 AIR MILES WEST OF ST. HWY . 83; 

 0.57 AIR MILE WEST OF SWAN RIVER; CA. 6.5 AIR MILES SOUTH OF 

 SWAN LAKE (TOWN) . 



Element occurrence data: 



ABOUT 3000-4000 PLANTS, POSSIBLY MORE (1987); 1000-2000 

 PLANTS (1989); VERY DENSE, AND FORMING MATS, IN WEST POND; 

 THE TWO PONDS, WHICH ARE SEPARATED BY A SALIX BORDER, ARE 

 JOINED BY HIGHER WATER IN THE SPRING. 



General site description: 



IN TWO SMALL, ADJACENT GLACIAL POTHOLES, IN 1-2 FEET OF 

 WATER; WITH CAREX VESICARIA, EQUISETUM FLUVIATILE, SIUM 

 SUAVE; POPULUS TRICHOCARPA, BETULA PAPYRIFERA AROUND PONDS. 



Land owner/manager: 



FLATHEAD NATIONAL FOREST, SWAN LAKE RANGER DISTRICT 



Comments: 



VOUCHER-SHELLY, J.S. (1356), 1987, MONTU. pH = 7.20 IN WEST 

 POND. 



Information source: 



SHELLY, J.S. 1987. FIELD SURVEYS IN LAKE AND MISSOULA COS. 

 OF 23-26 & 30 JUNE, 1-17 & 28-30 JULY. 



Element Occurrence Record - Flathead National Forest 

 Montana Natural Heritage Program 



