?Trees Shrubs Japan 1: 155, 1922?. Submitted.

?Hortus Kew. 2: 68, 1789?. Submitted.

?Gen. Hist. 3: 829, 1834?. Submitted.

?Fl. Amer. Sept. (Pursh) 1: 291, 1813?. Submitted.

?Fl. Ross. (Pallas) 1, 1789?. Submitted.

?Index Sem. (Marburg) 1: 2, 1827?. Submitted.

?Nomencl. Bot., ed. 2 (Steudel) 1: 88, 1840?. Submitted.

?Arch. Nauk Biol. Towarz. Nauk. Warszawsk. 4: 53, 1933?. Submitted.

?Handb. Skand. Fl., ed. 11 : 319, 1879?. Submitted.

?Bot. Jahrb. Syst. 19: 396, 1894?. Submitted.

?Gen. Hist. 3: 829, 1834?. Submitted.

?Fl. Sibir. Orient. Extremi 2: 74, 1915?. Submitted.

?Hortus Kew. 2: 68, 1789?. Submitted.

?Bot. Cab. 18: t. 1714, 1831?. Submitted.

?Sp. Pl.  393, 1753?. Submitted.