SPECIES OF SPECIAL CONCERN 

 Lomatium bicolor var bicolor 



SPECIES INFORMATION 



A. CLASSIFICATION 



1. SCIENTIFIC NAME: Lomatium bicolor (S. Watson) 

 Coulter & Rose var. bicolor 



2. COMMON NAME: bicolor biscuitroot. 



3. FAMILY: Apiaceae (= Umbelliferae, Carrot Family). 



4. GENUS: There are approximately 75 species in the 

 genus Lomatium in western and central North 

 America (Hitchcock et al. 1955-1969) . Twelve of 

 these species occur in Montana (Dorn 1984) . 



5. SPECIES: Most of the species in this notoriously 

 difficult genus are fairly well defined; however, 

 to distinguish among them usually requires a 

 combination of several characters (Hitchcock et 

 al. 1955-1969) . Lomatium bicolor is distinguished 

 from other species in the genus Lomatium that 

 occur in western Montana by the following 

 characters: lace-like leaf segments, yellow 

 flower petals, long narrow fruit, somewhat bulbous 

 roots, and a slender stature (Dorn 1984, Hitchcock 

 et al. 1955-1969, Schlessman 1984). In Montana, 

 it is represented by var.' bicolor (Lincoln 

 Constance, pers. comm.). 



B. PRESENT LEGAL OR OTHER FORMAL STATUS 



1. FEDERAL STATUS 



a. U.S. FISH AND WILDLIFE SERVICE: None. 



b. U.S. FOREST SERVICE: None. 



2. STATE: This species was listed as a rare disjunct 

 in Montana by the Montana Rare Plant Project 

 (Lesica et al. 1984) . The L. bicolor var. bicolor 

 populations of Montana are widely separated from 

 the main species range, which is centered in 

 southeast Idaho and northern Utah (Schlessman 

 1984) . 



