RESEARCH SUMMARY 



This paper presents 10 years of phenological observations of 

 common forest flora of the Northern Rockies. Descriptions of 

 important phenological events and earliest, latest, and average 

 dates of their occurrence are included. Phenological data were 

 collected on many National Forests, as well as Yellowstone and 

 Glacier National Parks, at more than 40 locations ranging from 

 eastern Montana to northern Idaho. Summaries include 50 forest 

 species--13 conifers, 22 hardwood trees and shrubs, and 15 herba- 

 ceous plants. Six summary tables are used to stratify the 

 phenological information for the above three vegetation groupings 

 both east and west of the Continental Divide. This phenological 

 information has the potential for much practical application 

 where timing of events such as leafing, pollination, cone opening, 

 and others are key to scheduling specific management and research 

 activities . 



