Phenology of common forest flora of the northern Rockies -- 1928 to 1937
Schmidt WC and Lotan JE. 1980. Phenology of common forest flora of the northern Rockies -- 1928 to 1937. U. S. Department of Agriculture Forest Service Research Paper INT-259. Intermountain Forest and Range Experiment Station, US Department of Agriculture, Forest Service. Ogden, UT
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 herbaceous 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.