Viola tricolor L. - Accepted: Viola tricolor L. bei Zander 2008; Familie: Violaceae (Zander 2008)
Viola tricolor L. - Accepted: Viola tricolor L. bei The Plant List (2010); Familie: Violaceae (APG III)
Viola tricolor L. - Accepted: Viola tricolor L. bei The Plant List (2014), version 1.1; Familie: Violaceae (APG III)
Viola tricolor L. - Accepted: Viola tricolor L. bei The Plant List (2014), version 1.1; Familie: Violaceae (APG IV)
Viola tricolor L. - Accepted: Viola tricolor L. bei Schmeil-Fitschen 2019; Familie: Violaceae (APG IV)
Viola tricolor L. - Accepted: Viola tricolor L. bei BfN Checklist Flora DE; Familie: Violaceae (APG IV)

Erhardt, W., Götz, E., Bödeker, N. & Seybold, S. (2008): Der große Zander. Enzyklopädie der Pflanzennamen. Band 2. Arten und Sorten. Eugen Ulmer KG, Stuttgart (Hohenheim), 18. Aufl., 2103 S.;

The International Plant Names Index (2009). Published on the Internet http://www.ipni.org; Courtesy to IPNI, 2009. Exported from IPNI at date: 2009-09-22 20:17:51;