Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. An American species of rock rose, Helianthemum canadense, with large yellow flowers.

from the GNU version of the Collaborative International Dictionary of English

  • n. An American species of rockrose (Helianthemum Canadense), sometimes used in medicine as an astringent or aromatic tonic.

from The Century Dictionary and Cyclopedia

  • n. A common name in the United States for the Helianthemum Canadense, or rock-rose: so called from the crystals of ice which shoot from the bursting bark toward the base of the stem during freezing weather in autumn. It has been used in medicine as a bitter and an astringent. Also called frostwort.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • 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
  • n. tall perennial herb having clusters of white flowers; the eastern United States
  • 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
  • n. tall perennial herb having clusters of white flowers; the eastern United States

Etymologies

frost +‎ weed. Late in autumn, crystals of ice shoot from the cracked bark at the root. (Wiktionary)

Examples

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