Viola tracheliifolia Ging. var. populifolia Skottsb., Acta Horti Gothob. 13: 494. 1940. Type information: Holotype [GB]. C. Skottsberg 87. 7 August 1922. O`ahu: Ko`olau Mts., Pauoa flats. =Viola chamissoniana subsp. tracheliifolia