Rockrose
Pronunciation : Rock"rose`
Part of Speech : n.
Definition : Defn: A name given to any species of the genus Helianthemum, low shrubs or herbs with yellow flowers, especially the European H. vulgare and the American frostweed, H. Canadense. Cretan rockrose, a related shrub (Cistus Creticus), one of the plants yielding the fragrant gum called ladanum.
(Bot.)
Source : Webster's Unabridged Dictionary, 1913