helianthemum_canadense
1. [ noun ] (botany) 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
Synonyms: frostwort Crocanthemum_canadensei frost-weed frostweed
Related terms: helianthemum
Similar spelling:   Helianthemum_scoparium