?Index Seminum [St.Petersburg (Petropolitanus)] 1: 38, 1835?. Submitted.

?Sp. Pl.  420, 1753?. Submitted.

?Trudy Imp. S.-Peterburgsk. Bot. Sada 18: 440, 1901?. Submitted.

?Abh. Math.-Phys. Cl. Konigl. Bayer. Akad. Wiss. 4: 166, 1843?. Submitted.

?Mem. Acad. Imp. Sci. St.-Petersbourg Divers Savans 9: 53, 1859?. Submitted.

?Sp. Pl.  417, 1753?. Submitted.

?Trudy Imp. S.-Peterburgsk. Bot. Sada 18: 440, 1901?. Submitted.

?Mem. Acad. Imp. Sci. St.-Petersbourg Divers Savans 9: 54, 1859?. Submitted.

?Kouyuu Kaihou 91: 31, 1935?. Submitted.

?Novon 15: 145, 2005?. Submitted.

?Sp. Pl.  419, 1753?. Submitted.

?Enum. Pl. (Willdenow) 1: 473, 1809?. Submitted.

?Syn. Pl. (Persoon) 1: 500, 1805?. Submitted.

?J. Coll. Sci. Imp. Univ. Tokyo 26: 77, 1909?. Submitted.

?Tent. Fl. Germ. 1: 192, 1788?. Submitted.