Found 2 items, similar to Helianthemum Canadense.
English → English (WordNet) Definition: Helianthemum canadense Helianthemum canadense n : perennial of the eastern United States having early solitary yellow flowers followed by late petalless flowers; so-called because ice crystals form on it during first frosts [syn: frostweed, frost-weed, frostwort, Crocanthemum canadensei ]
English → English (gcide) Definition: Helianthemum Canadense Frostweed \Frost"weed`\, n. (Bot.) An American species of rockrose (Helianthemum Canadense), sometimes used in medicine as an astringent or aromatic tonic. [1913 Webster] Note: It has large yellow flowers which are often sterile, and later it has abundant but inconspicuous flowers which bear seed. It is so called because, late in autumn, crystals of ice shoot from the cracked bark at the root; -- called also frostwort. [1913 Webster] Rockrose \Rock"rose`\, n. (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. [1913 Webster] Cretan rockrose, a related shrub (Cistus Creticus), one of the plants yielding the fragrant gum called ladanum. [1913 Webster]