Helianthemum violaceum subsp. violaceum Helianthemum violaceum subsp. subobtusatum
Helianthemum apenninum subsp. violaceum Helianthemum thymifolium var. violaceum Helianthemum lineare var. violaceum Helianthemum variabile var. linearifolium Helianthemum pilosum subsp. violaceum Helianthemum pilosum var. violaceum Cistus violaceus
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