First published in Madroño 10: 125 (1949)
- Douglas, G.W., Meidinger, D. & Penny, J.L. (2002). Rare Native Vascular Plants of British Columbia . ed. 2: 1-358. Province of British Columbia.
Not accepted by
- Flora of North America Editorial Committee (2015). Flora of North America North of Mexico 6: 1-468. Oxford University Press, New York, Oxford. [Cited as Viola purpurea var. venosa.]
Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0