stature to L. bicolor var. bicolor, but has wider 

 ultimate leaf segments, and white or purple 

 flowers. Lomatium bicolor var. bicolor and 

 Lomatium sandbergii both have yellow flowers and 

 very fine lace-like leaf segments, but the latter 

 has shorter fruits, short leafy shoots, and roots 

 that are generally not bulbous (Schlessman 1984) . 



D. GEOGRAPHICAL DISTRIBUTION 



1. RANGE: In Montana, L. bicolor var. bicolor is 

 known from 12 locations in the Bitterroot 

 Mountains (Bitterroot National Forest) , Ravalli 

 County, and a single recently recorded site in 

 Sanders County. The distribution of L. bicolor 

 var. bicolor in Montana is shown in Figure 1, p. 

 11. 



The Berray Trail (001) population in Sanders 

 County occurs on the Kootenai National Forest. 

 Population information for this site, including 

 size, elevation, location and associated species, 

 is included on p. 12. The exact location of the 

 Berray Trail (001) subpopulations are marked on a 

 U.S.G.S. topographic map, p. 13. 



Variety bicolor is also known from northern Utah, 

 southeastern Idaho, and southwestern Wyoming. It 

 does not appear to be very common in either 

 Wyoming (Mollis Marriott, pers. comm.) or Utah 

 (Ben Franklin, pers. comm.). 



E . HABITAT 



/ 



1. ASSOCIATED VEGETATION: In Montana, Lomatium 

 bicolor var. bicolor occurs from mid- to high 

 elevations in the mountains, in gravelly scree or 

 rocky habitats. These sites appear to be moist in 

 spring and early summer, but are dry by August. 

 Although the Berray Trail (001) subpopulations 

 were not in areas of dense vegetation, they were 

 associated with a number of other plant species, 

 including: 



Aspidotis densa (podfern) 



Calochortus apiculatus (pointed mariposa) 

 Cryptoqramma acrostichoides (parsley fern) 

 Lomatium ambiquum (swale desert parsley) 

 Lomatium dissectum (fern-leaved lomatium) 

 Penstemon lyallii (Lyall's beardtongue) 

 Penstemon wilcoxii (Wilcox's penstemon) 



