frostweed has definitions from the field of botany
1
[ noun ] (botany) 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

Related terms

helianthemum

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

Related terms

crownbeard

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