Rockrose /(?)/

Rock·rose

Rockrose

n.
  1. A name given to any species of the genus Helianthemum, low shrubs or herbs with yellow flowers, especially the European Helianthemum vulgare and the American frostweed, Helianthemum Canadense. (Bot.)

Phrases & Compounds
Cretan rockrose
a related shrub (Cistus Creticus), one of the plants yielding the fragrant gum called ladanum.