Helianthemum rosmarinifolium Pursh, Fl. Amer. Sept.: 364. 1813 Helianthemum rosmarinifolium Pursh, Fl. Amer. Sept.: 364. 1813is earlier homonym of Helianthemum rosmarinifolium C. Presl, Symb. Bot. 1: 32. 1831This name is not assigned to any taxon.