Helianthemum canum subsp. canescens (Hartm.) M. Proctor in Feddes Repert. 79: 58. 1968 Helianthemum canum subsp. canescens (Hartm.) M. Proctor in Feddes Repert. 79: 58. 1968Taxon for this nameHelianthemum canum subsp. canescens (Hartm.) M. Proctor