• (n.) 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. Found on http://thinkexist.com/dictionary/meaning/rockrose/
Rock'rose` noun (Botany) 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 ), ... Found on http://www.encyclo.co.uk/webster/R/88
[n] - any of numerous varieties of helianthemums having small roselike yellow or white or reddish flowers 2. [n] - small shrubs of scrub and dry woodland regions of southern Europe and North Africa Found on http://www.webdictionary.co.uk/definition.php?query=rockrose