?Nomencl. Bot., ed. 2 (Steudel) 2: 20, 1841?. Submitted.

?Ligneous Fl. Heilongjiang 486, 1986?. Submitted.

?Vilyuisk. Okruge Fakutsk. Obl. 2: 283, 1886?. Submitted.

?Fl. Kamtchatka 4: 8, 1930?. Submitted.

?Fl. Bor.-Amer. (Hooker) 2: 44, 1834?. Submitted.

?Fl. Sibir. Orient. Extremi 2: 8, 1915?. Submitted.

?Bot. Mag. (Tokyo) 31: 102, 1917?. Submitted.

?Bot. Mater. Gerb. Bot. Inst. Komarova Akad. Nauk S.S.S.R. 15: 203, 1953?. Submitted.

?Man. Fl. Nippon 421, 1927?. Submitted.

?Man. Fl. Nippon 421, 1927?. Submitted.

?J. Fac. Sci. Univ. Tokyo, Sect. 3, Bot. 6: 351, 1956?. Submitted.

?Neolin. Fl. Manshur.  498, 1979?. Submitted.

?Trees Shrubs Japan ed. 1: 12, 1922?. Submitted.

?Trees Shrubs Japan ed. 1: 13, 1922?. Submitted.

?Fl. Bor.-Amer. (Michaux) 1: 259, 1803?. Submitted.

?Bot. Cab. 11: 1049, 1825?. Submitted.

?Collectanea [Jacquin] 2: 308, 1789?. Submitted.

?Trees Shrubs Japan 1: 14, 1922?. Submitted.

?Meddel. Gronland 40971: 692, 1892?. Submitted.

?Trees Shrubs Japan, Revis. Ed. 1: 19, 1927?. Submitted.

?Sp. Pl. : 391, 1753?. Submitted.

?Fl. Alaska Yukon 8: 1219, 1948?. Submitted.

?Fl. Dan. 4(10): 5, 1771?. Submitted.

?Izv. Imp. S.-Peterburgsk. Bot. Sada 16: 175, 1916?. Submitted.

?N. Amer. Fl. 29: 37, 1914?. Submitted.

?Hortus Kew. 2: 65, 1789?. Submitted.

?Ann. Bot. Fenn. 27: 204, 1990?. Submitted.