Calycanthus fertilis var. ferax Rehder - Synonym: Calycanthus fertilis var. ferax (Michx.) Rehder bei The Plant List (2010); Familie: Calycanthaceae (APG III)
Calycanthus fertilis var. ferax (Michx.) Rehder - Synonym: Calycanthus floridus var. glaucus (Willd.) Torr. & A. Gray bei The Plant List (2010); Familie: Calycanthaceae (APG III)
Calycanthus floridus var. glaucus (Willd.) Torr. & A. Gray - Accepted: Calycanthus floridus var. glaucus (Willd.) Torr. & A. Gray bei The Plant List (2010); Familie: Calycanthaceae (APG III)
Calycanthus fertilis Walter - Synonym: Calycanthus floridus var. glaucus (Willd.) Torr. & A. Gray bei The Plant List (2010); Familie: Calycanthaceae (APG III)
Calycanthus floridus var. glaucus (Willd.) Torr. & A. Gray - Accepted: Calycanthus floridus var. glaucus (Willd.) Torr. & A. Gray bei The Plant List (2014), version 1.1; Familie: Calycanthaceae (APG III)
Calycanthus floridus var. glaucus (Willd.) Torr. & A. Gray - Accepted: Calycanthus floridus var. glaucus (Willd.) Torr. & A. Gray bei The Plant List (2014), version 1.1; Familie: Calycanthaceae (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;