frostweed

n 1: 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: {frostwort}, {Helianthemum canadense}, {Crocanthemum

canadensei}]

2: tall perennial herb having clusters of white flowers; the

eastern United States [syn: {Virginia crownbeard}, {Verbesina

virginica}]