• Adler (1994), S.883
• Binz (1986), S.504
• Flora Gallica (2014), S.294
• Flora Italiana - Link (20,9.2022)
• Flora of China - Link (16.11.2022)
• Hess (1976ff), Bd.1, S.201f
• info flora - Link (16.11.2022)
• Markgraf (1981), S.235f
• Oberdorfer (2001), Nr.103
• Pignatti (1982), Vol.3, Nr.4522(b
• Rothmaler (2002), S.143
• Tela Botanica - Link (16.11.2022)
• Wiegleb (1998), S.288f
• World Flora Online - Link (16.11.2022)

Kristian Peters -- Fabelfroh 08:42, 1 November 2006 (UTC), CC BY-SA 3.0 , via Wikimedia Commons