| frostweed | (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. Crocanthemum canadense, frost-weed, frostwort, Helianthemum canadense |
| virginia crownbeard | (n) tall perennial herb having clusters of white flowers; the eastern United States, Syn. frostweed, frost-weed, Verbesina virginica |