The type was collected along the Columbia River on 27 Mar 1806 (Moulton, 1991: 45, 47). That day the expedition stopped near Rainier and near Globe, both in Columbia Co., Oregon. The specimens could have come from either location (Moulton, 1991: 19-22). (The Lewis & Clark Herbarium Digital Imagery Study Set, ANSP, 2002) On deposit at the Academy of Natural Sciences, Philadelphia Collected by:Meriwether Lewis & William Clark Collection date:03/27/1806