B. National 



1. United States 



a. Present designated or proposed 

 legal protection or regulation: 



U.S. Fish and Wildlife Service ; 

 Lescmerella humilis is currently 

 under notice of review for 

 potential listing as a threatened 

 species under the U.S. Endangered 

 Species Act of 1973 (U.S. 

 Department of Interior 1990) and is 

 in Category 2 ("taxa for which 

 there is some evidence of 

 vulnerability, but not enough data 

 to support listing proposals at 

 this time") . 



U.S. Forest Service ; Lesquerella 

 humilis is currently included on 

 the list of sensitive plant species 

 for Region 1 (Northern Region) of 

 the U.S. Forest Service (U.S. 

 Department of Agriculture 1988, 

 Reel et al. 1989) . Sensitive 

 species are "...those plant and 

 animal species identified by the 

 Regional Forester for which 

 population viability is a concern, 

 as evidenced by; a.) significant 

 current or predicted downward 

 trends in population numbers or 

 density," and/or "b. significant 

 current or predicted downward 

 trends in habitat capability that 

 would reduce a species' existing 

 distribution" (Reel et al. 1989) . 

 By its inclusion on the Region 1 

 sensitive species list, L, humilis 

 has legal protection under U.S. 

 Forest Service policies (W. 

 Ruediger, pers. comm.). 



b. Other current formal status 

 recommendations: Lesquerella 

 humilis is currently listed by the 

 Montana Natural Heritage Program 

 (Shelly 1990) as "critically 

 imperiled globally" owing to 

 extreme rarity (5 or fewer 

 occurrences; global rank = Gl) . 



