collection was made in a roadside setting, which raises the 

 question as to whether it may have been an accidental 

 introduction. 



F. POPULATION ECOLOGY: Unknown. This species has diminished elsewhere on 

 the Great Plains. Vegetation competition and woody encroachment are suspected 

 (David Ode, South Dakota Natural Heritage Program, pers. comm.). 



G. LAND OWNERSHIP (MONTANA): The vague location given for the historic 

 collection site (001) is on the Ashland District of Custer National Forest. 



H. ASSESSMENT AND MANAGEMENT RECOMMENDATIONS: This species 

 should be kept in mind when conducting on-site work east of Sayle. The open pine 

 woodlands and adjoining successional slopes at the upper end of Bloom Creek are 

 thought to be the most likely natural habitat, but no upland settings should be ruled 

 out. If it were relocated in natural habitat, then it would be appropriate for the Forest 

 Service to consider it as being sensitive. The possibility that it was collected from 

 disturbed roadside habitat along what is now abandoned roadbed was not exhaustively 

 ruled out in this study. 



SUMMARY 



Ceanothus herbacens is recommended for designation as watch. The only collection of this 

 species in the state came from the Ashland District and is an historic record. Its state rank has 

 been changed to "SH" (state historic). 



48 



