identity of the plant when I collected it and did not take 

 extensive information on the site. It occurs in moist soil on 

 the drier margins of a wet meadow adjacent to an old logging 

 road. Before the area was logged this meadow was in a matrix of 

 moist spruce forest. My impression is that the population was 

 small, probably less than 200 plants. 



Comments: At this site Jj. hallii occurs near a population of J_, 

 tenuis , and the two species can be confused. The logging road 

 through the area may have impacted this population when it was 

 built, and timber harvest undoubtedly altered the hydrologic 

 regime of the site. 



Element Name: Orobanche corymbosa (Rydb.) Ferris 



Common Name: Flat-topped broomrape 



Range: Southern British Columbia to southwest Montana, south to 

 California, Nevada and Utah. In Montana the species is known 

 from Beaverhead, Madison and Ravalli counties. 



Element Rank: G4/S2 



Federal Status: USFS Region 1 Sensitive 



Local Occurrence: I located one population of CK. corymbosa in 

 the Hells Canyon Creek area (Fig. 4) . Plants occurred in course- 

 textured, granitic soil on gentle slopes of mesas on the 

 northeast side of the canyon. The population consists of three 

 subpopulations, all within 1 mile of each other. I estimated 

 that at least 2,000 plants occur between these three 

 subpopulations. Associated plant community is Artemisia 

 tridentata / Festuca idahoensis . 



Comments: Although similar habitat exists both north and south 

 of the three subpopulations, I was unable to locate any plants in 

 these areas. Additional populations may occur on BLM or private 

 land to the west and south of the study area. 



I am not aware of any threats to this population of O^ 

 corymbosa . 



Element Name: Penstemon lemhiensis (Keck) Keck & Cronq. 



Common Name: Lemhi beardtongue 



Range: Endemic to Beaverhead, Ravalli and Silver Bow counties, 

 Montana and Lemhi County Idaho 

 Element Rank: G2/S2 



Federal Status: USFWS C2, USFS Region 1 Sensitive 



9 



