species, representing many of the typical and unusual habitat 

 types found in the range. A Map showing principle survey 

 routes is given in Appendix A. 



Field notes included lists of all vascular plant taxa 

 identified. The primary floras used to key out plants in the 

 field were Dorn (1984, 1992) and Hitchcock and Cronquist 

 (1973). Whenever populations of target species were 

 encountered, more detailed notes were taken, standard field 

 survey forms were filled out, and the populations were mapped. 

 Collected data included information on habitat (associated 

 vegetation, landscape position, soils), demography (population 

 numbers and area covered), plant biology (phenology, vigor, 

 reproductive success), and potential threats to the 

 populations. Photographs (35 mm slides) were taken of the 

 target species and their habitats. 



Voucher specimens of the target species were collected 

 when adequate material was available. Some collections were 

 also made of the general flora, especially when field 

 identification was difficult or to document notable taxa. The 

 first set of all collections will be deposited at the 

 herbarium at Montana State University (MONT) . 



RESULTS 



Eight populations of five target species were documented 

 for the first time in the Beaverhead National Forest in the 

 Tendoy Mountains. These include three populations of Cusick's 

 horsemint {Agastache cusickii) , two of Sitka columbine 

 {Aquilegia formosa) , and one each of Bitterroot milkvetch 

 (Astragalus scaphoides) , valley sedge (Carex vallicola) , and 

 tapertip biscuitroot {Lomatium attenuatum) . Aquilegia formosa 

 and Carex vallicola are new additions to the flora of the 

 Tendoys; the others were previously documented on BLM land in 

 the range (Vanderhorst and Lesica 1994). None of these are 

 currently listed as sensitive species by Region 1 (USDA Forest 

 Service 1994), but Agastache cusickii. Astragalus scaphoides, 

 and Lomatium attenuatum have BLM proposed sensitive status 

 (USDI Bureau of Land Management 1993). Element Occurrence 

 Records (EORs) and topographic maps showing precise locations 

 are given in Appendix D for each of the populations. 

 Photographic slides of some of the plants and/or their 

 habitats are attached at the end of the report. 



In addition to the five target species found on the 

 Beaverhead National Forest, six taxa previously tracked by the 

 Montana Natural Heritage Program were documented in the study 

 area (Appendix B). Of the 17 targets previously documented in 

 the BLM Tendoy study area, 14 were not encountered on the 



