| n. | 1. | (Bot.) 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.
| |||
| Noun | 1. | rockrose - any of numerous varieties of helianthemums having small roselike yellow or white or reddish flowers Synonyms: rock rose |
| 2. | rockrose - small shrubs of scrub and dry woodland regions of southern Europe and North Africa; grown for their showy flowers and soft often downy and aromatic evergreen foliage Synonyms: rock rose |