kingdom Plantae - plants »  divisio Magnoliophyta - flowering plants »  class Rosopsida - eudicots » order Malpighiales »  family Violaceae »  tribus Violeae > genus Viola > section Viola sect. Chamaemelanium  Ging. 

subsection Viola subsect. Nudicaules  W. Becker s

incl. Viola subsect. Erectae  W. Becker p.p.

Viola alliariifolia Nakai

Viola brevistipulata (Franch. & Sav.) W. Becker

Viola glabella Nutt. - California Violet

Viola hastata Michx. - Halberdleaf Yellow Violet

Viola lobata Benth. - Pine Violet

Viola muehldorfii Kiss

Viola orientalis (Maxim.) W. Becker

Viola placida W. Becker

Viola pubescens Ait. - Downy Yellow Violet

Viola tripartita Ell. - Threepart Violet

Viola uniflora L.