| 单词 | frostweed | ||||||
| 释义 | frostweed
frostweedfrostweedorfrostwort,North American woodland flowers (Helianthemum canadense and sometimes other related species) of the family Cistaceae (rockrose family). In cold weather, crystals of ice shoot from the cracked bark at the base of the stem. The names frostweed and frostflower are also used for several other unrelated plants that have white flowers or bloom late (e.g., the asters). Frostweeds are classified in the division MagnoliophytaMagnoliophyta, division of the plant kingdom consisting of those organisms commonly called the flowering plants, or angiosperms. The angiosperms have leaves, stems, and roots, and vascular, or conducting, tissue (xylem and phloem). ..... Click the link for more information. , class Magnoliopsida, order Violales, family Cistaceae.  frostweedfrostweed
Synonyms for frostweed
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frostweed - 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
frostweed - tall perennial herb having clusters of white flowers; the eastern United States