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

• crocanthemum canadense
• frostweed
• frostwort
• helianthemum canadense

2. (noun) tall perennial herb having clusters of white flowers; the eastern United States

• frostweed
• verbesina virginica
• virginia crownbeard

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

• helianthemum
• sun rose
• sunrose

2. (noun) tall perennial herb having clusters of white flowers; the eastern United States

• crown beard
• crown-beard
• crownbeard