74 

 Salix wolfii var. wolfii 



I. SPECIES INFORMATION 



A. CLASSIFICATION 



1. SCIENTIFIC NAME: Salix wolfii Bebb . var. wolfii 



2. COMMON N2^E: Wolf's willow 



3. FAMILY: Salicaceae (Willow family) 



4. GENUS: Salix is a genus of approximately 300 

 species (Hitchcock and Cronquist 1964). These are 

 mostly of the cool temperate regions in the 

 Northern Hemisphere. 



5. SPECIES/VARIETY: Salix wolfii is a Rocky Mountain 

 species consisting of two varieties. Salix wolfii 

 var. idahoensis occupies the northwestern part of 

 the range of the species, while var. wolfii occurs 

 in the southern portions, "barely entering 

 southwest Montana" (Hitchcock and Cronquist 1964). 



B. PRESENT LEGAL OR OTHER FORMAL STATUS 



1. FEDERAL STATUS 



a. U.S. FISH AND WILDLIFE SERVICE: Salix wolfii 

 var. wolfii is not currently listed in the 

 U.S.F.W.S. Notice of Review (U.S. Department 

 of Interior 1985) . 



b. U.S. FOREST SERVICE: Salix wolfii var. wolfii 

 is currently included on the list of sensitive 

 species for Region 1 (Northern Region) of the 

 U.S. Forest Service (U.S. Department of 

 Agriculture 1988) . 



2. STATE: Salix wolfii var. wolfii is currently 

 listed by the Montana Natural Heritage Program 

 (Shelly 1989) as "critically imperiled in the 

 state" (state rank = SI) . This state rank does not 

 currently provide any direct legal protection for 

 S. wolfii var. wolfii . Through its inclusion on 

 the Region 1 sensitive plant list, the-taxon has 

 legal protection under U.S. Forest Service agency 

 policies (W. Ruediger, pers. comm.). 



C. DESCRIPTION 



1. GENERAL NONTECHNICAL DESCRIPTION: Salix wolfii 



