Androsace septentrional is 



Antennaria alpina 



Arnica mollis 



Caltha leptosepala 



Carex rostrata 



Carex scopulorum 



Castilleja rhexifolia . . 



Deschampsia cespitosa . . . 

 Eriqeron pereqrinus .... 



Habenaria dilatata 



Juncus balticus 



Pedicularis qroenlandica 



Phleum alpinum 



Poa leptocoma 



Polygonum bistortoides . 

 Potentilla diversifolia 



Salix drummondiana 



Saxifraqa oreqana 



Senecio triangularis . . . 

 Veronica wormskioldii . . 

 Ziqadenus eleqans 



(northern androsace) 

 (alpine pussytoes) 

 (hairy arnica) 

 (elkslip) 

 (beaked sedge) 

 (Holm's Rocky Mountain 

 sedge) 



( rhexia-leaved 

 paintbrush) 

 (tufted hairgrass) 

 (subalpine daisy) 

 (white bog-orchid) 

 (Baltic rush) 

 (elephant's head) 

 (alpine timothy) 

 (bog bluegrass) 

 (American bistort) 

 (vari-leaf cinquefoil) 

 (Drummond willow) 

 (bog saxifraga) 

 (arrowleaf groundsel) 

 (alpine speedwell) 

 (glaucous death camas) 



TOPOGRAPHY: In Montana, populations of A. 

 lackschewitzii are usually found in moist meadows 

 and on the edges of wet meadows. Most locations 

 are flat to gently sloping (0-30%) , on slopes with 

 various aspects, predominantly east. Elevations 

 of these sites range from 2120 to 2880 m (6950- 

 9450 ft) . 



SOIL RELATIONSHIPS: Aqoseris lackschewitzii 

 occurs on various substrates. In the moist 

 meadows, soils are shallow and gravelly to loamy, 

 with high amounts of organic matter present. This 

 species does not appear to be restricted to a 

 specific geologic stratum, physical or chemical 

 characteristic of the soil. 



REGIONAL CLIMATE: The majority of populations lie 

 on the east side of the continental divide. 

 Although Montana has a semi-arid climate, the high 

 elevations, where A. lackschewitzii populations 

 are located, receive approximately 8.0-16.0 cm 

 (20-40 in) of precipitation annually. The meadows 

 they occur in have enough well-distributed 

 rainfall or ground water flow to remain moist 

 throughout the growing season. Thirty-year 

 averages (U.S. Department of Commerce 1982) for 

 eight weather stations from Divide Creek east to 

 Big Timber yield the following statistics: 



