?Fl. E. Himalaya 2: 65, 1971?. Submitted.

?Bot. Jahrb. Syst. 54 (1): 55, 1916?. Submitted.

?Fl. Jap. (Ohwi) 683, 1953?. Submitted.

?Edinburgh J. Bot. 57: 182, 2000?. Submitted.