Noun cottonweed has 2 senses
  1. pearly everlasting, cottonweed, Anaphalis margaritacea - American everlasting having foliage with soft wooly hairs and corymbose heads with pearly white bracts
    --1 is a kind of everlasting, everlasting flower
    --1 is a member of Anaphalis, genus Anaphalis
  2. cottonweed - any of various plants of the genus Froelichia found in sandy soils and on rocky slopes in warmer regions of America; grown for their spikes of woolly white flowers
    --2 is a kind of
    herb, herbaceous plant
    --2 is a member of Froelichia, genus Froelichia
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