Threats: The primary threats to Agoseris lackschewitzii are from 

 grazing by domestic livestock and trampling associated with 

 grazing or trails. The moist meadows in which the species occurs 

 are quite susceptible to trampling damage due to their low 

 bearing capacity. Such sites may also be susceptible to water 

 erosion. 



Recommendations for Maintaining Viable Populations: Management 

 plans should take the occurrence of this species fully into 

 account and prevent disturbance to the sites. To prevent 

 inadvertent impacts, detailed information on the location of 

 Agoseris lackschewitzii populations in the Goat Flat Proposed 

 Research Natural Area should be made known to all personnel 

 involved in planning activities in the area. Additional surveys 

 of the moist and wet meadows in the Goat Flat Proposed Research 

 Natural Area should be done to fully delineate the extent of 

 Agoseris lackschewitzii populations in the area. 



Antennaria densifolia (tufted pussytoes) 



Species Information: The genus Antennaria contains perhaps 30 

 species (Hitchcock et al. 1955-1969), about 13 of which are 

 currently known from Montana (Dorn 1984) . Antennaria densifolia 

 is closely related to Antennaria aromatica (Bayer 1989a) and is 

 the only member of the genus in Montana to have sensitive status. 



Present Legal or Other Formal Status: Antennaria densifolia 

 currently has no status under the Endangered Species Act but is 

 on the Sensitive list for Region 1 of the U.S. Forest Service. It 

 is currently ranked by the Montana Natural Heritage Program 

 globally as G3 (either rare and local or locally in a restricted 

 range, 21-100 occurrences) and in Montana as SI (imperiled 

 because of rarity, <5 occurrences) . 



Geographic Distribution: Antennaria densifolia occurs primarily 

 on the unglaciated eastern slopes of the Mackenzie, Richardson 

 and Ogilvie mountains of the Northwest Territories and the Yukon 

 Territory (Bayer 1989a & b) . The occurrence in the Goat Flat 

 Proposed Research Natural Area is a disjunction of ca . 1850 km 

 and is the only site known for Montana or the U.S. 



Habitat: The habitat at Goat Flat is limestone talus in alpine 

 tundra at ca . 9150 ft which is typical of its habitat elsewhere. 

 Antennaria densifolia appears to be a narrowly restricted endemic 

 that occurs on calcareous, unglaciated habitats (Bayer 1989a) . 



Population Biology and Ecology: Some populations of this species 

 in Canada contain only pistillate plants which suggests that they 

 are apomictic. However, the Goat Flat population contains both 

 staminate and pistillate plants (Bayer 1989a) and reproduces 

 sexually. The Goat Flat population is diploid as are the plants 

 in Canada (Bayer 1989a). The plants flower in July and August. 



