Definitions of frostweed
  1. noun
    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: Crocanthemum canadense, Helianthemum canadense, frost-weed, frostwort
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    type of:
    helianthemum, sun rose, sunrose
    any plant of the genus Helianthemum; vigorous plants of stony alpine meadows and dry scrub regions
  2. noun
    tall perennial herb having clusters of white flowers; the eastern United States
    synonyms: Verbesina virginica, Virginia crownbeard, frost-weed
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    type of:
    crown beard, crown-beard, crownbeard
    any plant of the genus Verbesina having clustered white or yellow flower heads
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