Viola sect. Nosphinium  W. Becker     

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

section Viola sect. Nosphinium  W. Becker 

subsection Viola subsect. Boreali-Americanae (W. Becker) Gil-ad  

subsection Viola subsect. Langsdorffianae (W. Becker) ined. 

subsection Viola subsect. Mexicanae  (W. Becker) ined. 

subsection Viola subsect. Nosphinium  (W. Becker) ined. 

subsection Viola subsect. Pedatae  (Pollard) ined.