Noun tumbleweed has 4 senses
  1. tumbleweed - any plant that breaks away from its roots in autumn and is driven by the wind as a light rolling mass
    --1 is a kind of
    weed
  2. Russian thistle, Russian tumbleweed, Russian cactus, tumbleweed, Salsola kali tenuifolia - prickly bushy Eurasian plant; a troublesome weed in central and western United States
    --2 is a kind of shrub, bush
  3. winged pigweed, tumbleweed, Cycloloma atriplicifolium - bushy annual weed of central North America having greenish flowers and winged seeds
    --3 is a kind of shrub, bush
    --3 is a member of Cycloloma, genus Cycloloma
  4. tumbleweed, Amaranthus albus, Amaranthus graecizans - bushy plant of western United States
    --4 is a kind of amaranth
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