• Adler (1994), S.878
• Binz (1986), S.500
• Flora Gallica (2014), S.70
• Flora Italiana (21.6.2022)
• Flora of China (2010)
• Hess (1976ff), Bd. 1, S.216
• info flora (21.6.2022)
• Markgraf (1981), S.168f
• Oberdorfer (2001), Nr.150
• Pignatti (1982), Vol.3, Nr.4491
• Rothmaler (2002), S.138f
• Tela Botanica (21.6.2022)

Bild: By I, KENPEI, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=4456230