Tuberaria praecox (Boiss. & Reut.) Grosser in Engler, Pflanzenr. 14: 59. 1903
Tuberaria praecox in Engler, Pflanzenr. 14: 59. 1903
is new combination for Helianthemum praecox, Pugill. Pl. Afr. Bor. Hispan.: 14. 1852
Tuberaria praecox in Engler, Pflanzenr. 14: 59. 1903