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Abstract

Approximately threee weeks were spent at the Station and in the vicinity. During the second year of this work an attempt was made to define the sagebrush communitites in terms of specific identity of the sagebrush dominants and their site preferences. It was found that Artemisia cana, A. tripartita, and A. arbuscula occupy distinct sites and at present are specifically segregated from A. tridentata. A. tridentat exhibits the greatest morphological variation and areas which it occupies will have to be subdivided in many different sites defined on some other basis than the presence of big sagebrush. Project Number 64.

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