Hugh Knott:
Helianthemum alpestre (Alpine Rockrose)
Hugh Knott:
Helianthemum alpestre (Alpine Rockrose)
Hugh Knott:
Helianthemum alpestre (Alpine Rockrose)
Hugh Knott:
Helianthemum nummularium ssp grandiflorum (Large-flowered Rock-rose)
Hugh Knott:
Helianthemum nummularium ssp. obscurum (Common Rockrose)
Hugh Knott:
Helianthemum alpestre (Alpine Rock-rose)