Begonia ulmifolia Willd. - Accepted: Begonia ulmifolia Willd. bei Zander 2008; Familie: Begoniaceae (Zander 2008)
Begonia ulmifolia Willd. - Accepted: Begonia ulmifolia Willd. bei The Plant List (2010); Familie: Begoniaceae (APG III)
Begonia ulmifolia Willd. - Accepted: Begonia ulmifolia Willd. bei The Plant List (2014), version 1.1; Familie: Begoniaceae (APG III)
Begonia ulmifolia Willd. - Accepted: Begonia ulmifolia Willd. bei The Plant List (2014), version 1.1; Familie: Begoniaceae (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.;

Govaerts, R. (2013): World Checklist of Selected Plant Families. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; http://apps.kew.org/wcsp/.;

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;