rockrose (plural rockroses)
- Any species of the genus Helianthemum, low shrubs or herbs with yellow flowers, especially the European Helianthum vulgare and the American frostweed, Helianthum canadense.
Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for rockrose in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.)