I. SPECIES INFORMATION 

 A. CLASSIFICATION 



1. SCIENTIFIC NAME: Lesguerella klausii R. Rollins. 



2. COMMON NAME: Klaus' bladderpod. 



3. FAMILY: Brassicaceae (=Crucif eras; Mustard 

 Fami ly ) . 



^. GENUS: Lesquerel la klausii is one of 

 approximately 75 species in the genus in North 

 America; of these, most are concentrated in the 

 southwestern United States, in Mexico, and in the 

 Rocky Mountain and intermontane basin region of 

 the western United States (Rollins and Shaw, 

 1973). Within the genus, L. klausi i "...is not 

 easily associated with any other species of 

 Lesguerella " ; on the basis of fruit 

 characteristics, "...the species falls in a 

 borderline between Lesquerel la and Physar ia . . . " 

 (Rollins, 198^). According to their 

 classification, though, L. klausii "...definitely 

 falls into Lesguerella rather than Physar ia " 

 (Rollins and Shaw, 1973; Rollins, 198^). 



5. SPECIES: Lesguerel la klausi i is a recently 

 described species (Rollins, 198^). It was first 

 discovered near Lewis &■ Clark Pass in 1977, by 

 Klaus H. Lackschewitz, in whose honor the species 

 was named. The type specimen was collected in 

 1982 by Lackschewitz and David Ramsden, at Rogers 

 Pass. Earlier collections were most often 

 labeled as Physaria qeyeri. but Dr. Reed Rollins 

 ultimately determined that they represented a 

 previously undescribed species. In Montana, L. 

 klausi i is one of six species reported for the 

 genus (Dorn, 198^; Rollins, 198^). 



B. PRESENT LEGAL OR OTHER FORMAL STATUS 



1. FEDERAL STATUS 



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



b. U.S. FOREST SERVICE: Prior to field work in 

 1987, Lesguerella klausii had been nominated 

 for the list of proposed sensitive species 

 for Region 1 (Northern Region) of the U.S. 

 Forest Service (Shelly and Lesica, 1986); it 

 was not included on the draft list of such 

 species (Pierce et. al. , 1987). During 1987, 

 15 additional occurrences were located, and 



