My experience of the flora of Lassen County, California, by Orrin C. Winton. Below: Viola beckwithii Torrey & A. Gray (Great Basin Violet). Please note, plant names (nomenclature) are in accordance with The Jepson Manual, 2nd Edition (2012) (TJM2).
Journal entries: 2010 May 9; 2011 Apr 19
Was: Sisyrinchium douglasii A. Dietr. var douglasii (JM93), genus Sisyrinchium, family Iridaceae (JM93)
Now: Olsynium douglasii (A. Dietr.) E.P. Bicknell, genus Olsynium, family Iridaceae (TJM2)