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Natural History
Trees and Shrubs
Aspen, quaking - Populus tremuloides
Cottonwoods - 3 Species
Douglas-Fir - A Nomenclatural Morass
Rafinesque's Six Firs of Oregon
Six Firs of Oregon
Grand Fir - Abies grandis
Unviolated Forests
Western Redcedar
Whitebark pine - Pinus albicaulis
Wild Rose - Rosa woodsii
Yucca - Yucca glauca
Osage orange


 
From Discovering Lewis & Clark ®, http://www.lewis-clark.org © 1998-2014
by The Lewis and Clark Fort Mandan Foundation, Washburn, North Dakota.
Journal excerpts are from The Journals of the Lewis and Clark Expedition, edited by Gary E. Moulton
13 vols. (Lincoln: University of Nebraska Press, 1983-2001)