c. Mortimer Gulch (T22N, R9W, Sections 9, 16, 21, 

 28, 33) 



d. Patricks Basin (downstream along Lange Creek 

 from Stovepipe Creek; T21N, RlOW, Sections 11, 

 13, 14). 



e. Stovepipe Creek (T21N, RlOW, Sections 13, 24; 

 T21N, R9W, Section 18) . 



No suitable habitat, aside from the Mud Lake, 

 White River, and Butcher Mountain Meadow sites in 

 the South Fork Flathead River drainage, was 

 observed in the Bob Marshall Wilderness Area. 

 Moist forests and meadow areas were searched in 

 the vicinity of Big Prairie (lower Cayuse Creek), 

 but no populations were found. 



HABITAT 



ASSOCIATED VEGETATION: In Montana, Cvpripedium 

 passerinum is found in moist mossy seepage areas, 

 along stream shores, and in the ecotonal margins of 

 sphagnum bogs, often in full or partial shade of 

 coniferous trees. The sites are most typically 

 associated with forests of Picea enqelmannii 

 (Engelmann Spruce) ; in some areas it also occurs 

 with Pinus contorta (Lodgepole Pine) . Additional 

 frequently associated plants, which include a large 

 number of other orchid species, include: 



Angelica arquta (Sharptooth Angelica) 



Carex aurea (Golden Sedge) 



Carex dioica (= C. gynocrates ; Yellow-bog Sedge) 



Carex disperma (Softleaved Sedge) 



Carex interior (Inland Sedge) 



Corallorhiza trif ida (Yellow Coral-root) 



Cornus canadensis (Bunchberry) 



Cornus stolonifera (Red Osier Dogwood) 



Disporum trachycarpum (Wartberry Fairy-bell) 



Equisetum arvense (Field Horsetail) 



Equisetum scirpoides (Sedgelike Horsetail) 



Galium boreale (Northern Bedstraw) 



Habenaria dilatata (White Bog-orchid) 



Habenaria h yperborea (Northern Green Bog-orchid) 



Habenaria obtusata (Blunt-leaf Rein-orchid) 



Ledum glandulosum (Trapper's Tea) 



Linnaea borealis (Western Twinflower) 



Listera borealis (Northern Twayblade) 



Listera convallarioides (Broad-lipped Twayblade) 



Mitella nuda (Bare-stemmed Mitrewort) 



Orchis rotundifolia (Round-leaved Orchis) 



Osmorhiza chilensis (Mountain Sweet-root) 



