| 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 |
| Frostwort | n. (Bot.) Same as Frostweed. [ 1913 Webster ] |