Xolantha praecox (Boiss. & Reut.) M. J. Gallego, Muñoz Garm. & C. Navarro in Castroviejo & al., Fl. Iber. 3: 359. 1
Xolantha praecox in Castroviejo & al., Fl. Iber. 3: 359. 1993
is new combination for Helianthemum praecox, Pugill. Pl. Afr. Bor. Hispan.: 14. 1852
Xolantha praecox in Castroviejo & al., Fl. Iber. 3: 359. 1993