J. Jap. Bot. 18: 620 (1942). Type locality: Japan, Hokkaido, Mt. Daisetsu, 1937, Y. Asahina 37016 (TNS - lectotype; US - isolectotype).
Type locality: Japan, Hokkaido, Mt. Daisetsu, 1937, Y. Asahina 37016 (TNS - lectotype; US - isolectotype).