Rocky mountain flora a field guide for the identification of the ferns, conifers, and flowering plants of the Southern Rocky mountains from Pikes Peak to Rocky Mountain National Park and from the Plains to the Continental divide - Weber, William A. (William Alfred), 1918- (Boulder, Colo. Colorado Associated University Press, 1976)
Editions for 1953 and 1961 published under title: Handbook of plants of the Colorado Front Range.
Includes index.
p. 466-468.
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Keywords: Botany -- Colorado; Botany -- Front Range (Colo. and Wyo.)