?Fl. Boem. Cent. 4 4: 55, 1794?. Submitted.

?Bot. Gaz. 61: 30, 1916?. Submitted.

?Plantsman n.s. 4: 219, 2005?. Submitted.

?Taxon 35: 588, 1986?. Submitted.

?Taxon 35: 588, 1986?. Submitted.

?Rostlinnictvi 0: 192, 1852?. Submitted.