Helianthemum italicum subsp. rupifragum (A. Kern.) Hayek in Repert. Spec. Nov. Regni Veg. Beih. 30(1): 497. 1925
Helianthemum italicum subsp. rupifragum in Repert. Spec. Nov. Regni Veg. Beih. 30(1): 497. 1925
is new combination for Helianthemum rupifragum in Oesterr. Bot. Z. 18: 18. 1868
Helianthemum italicum subsp. rupifragum in Repert. Spec. Nov. Regni Veg. Beih. 30(1): 497. 1925