Osti (1997)
XUE HAI DAN XIN, «Nuvola bianca dal cuore rosso». Cultivar del Gansu derivata dalla P. rockii con flore semidoppio. Petali bianchi, sfrangiati e macchie porpora all'unghia, variegate e allungate a fiamma. Stami completamente assenti, carpelli di un verde tenerissimo. Fioritura tardiva.
Osti (1999)
XUE HAI DAN XIN "White Cloud with a Red Heart" A Gansu cultivar derived from Paeonia rockii. Flowers: white with variegated purple blotches of an elongated flame shape at the base of the petals; semi - double, fringed petals, stamens absent; very pale green carpels, late flowering.
McLewin & Chen (2006) Peony rockii and Gansu Mudan
Xue Hai Dan Xin breeder, date: Chen Dezhong between 1995 and 2002 engl. translation: Snow Sea Red Heart color & form classification categories , remarks: 1.1.24 not online: 113
Cheng Fangyun: 'Chinese Flare Mudan' (Beijing 2005)
'Xue Hai Dan Xin' description (in chinese) & picture available on page 097.
Li Jiajue 2005, Chinese Tree Peony, Xibei, Xinan, Jiangnan Volume
Xuehai Danxin'whose filaments, discs and stigmas are all purple. Selected, cultivated and named by Chen D.Z.. [detailed description available on page 64]
