Geum triflorum Pursh (1813: 736.) was published simultaneously with G. ciliatum. The former was in the supplement to the book while the latter was in the main body of the text. Scheutz (1870: 53) adopted G. triflorum rather than G. ciliatum, and thus set the present-day nomenclature (Greuter et al., 1994: Art. 11.5 - see Davis, 1942: 405). The lectotype of G. triflorum, designated here, is Bradbury s.n., upper Missouri, 1811, annotated "Geum triflorum" by Pursh (PH-Lambert Herbarium). The lectotype of G. ciliatum was gathered on the Weippe Prairie in Clearwater Co., Idaho, on 12 Jun 1806. Lewis reports that "nothing interesting occurred in the course of this day" (Moulton, 1993: 22). Perhaps by now the novelty of collecting new species of flowering plants had worn away! (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:06/12/1806