Cytisus austriacus subsp. pygmaeus Chamaecytisus calcareus Cytisus pygmaeus Cytisus chrysotrichus Cytisus hirtellus Cytisus thirkeanus Chamaecytisus austriacus subsp. pygamaeus Cytisus supinus var. pygmaeus Cytisus austriacus var. pygmaeus
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024