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Any of various densely branched annual plants, such as Russian thistle and several species of amaranth, that break off from the roots at the end of the growing season and are rolled about by the wind.
(Plants) any densely branched plant that breaks off near the ground on withering and is rolled about by the wind, esp one of several amaranths of the western US and Australia
any of various plants whose branching upper parts become detached from the roots and are driven about by the wind, as the amaranth Amaranthusalbus or the Russian thistle Salsola kali.
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|Noun||1.||tumbleweed - any plant that breaks away from its roots in autumn and is driven by the wind as a light rolling mass|
weed - any plant that crowds out cultivated plants
|2.||tumbleweed - prickly bushy Eurasian plant; a troublesome weed in central and western United States|
|3.||tumbleweed - bushy annual weed of central North America having greenish flowers and winged seeds|
|4.||tumbleweed - bushy plant of western United States|
amaranth - any of various plants of the genus Amaranthus having dense plumes of green or red flowers; often cultivated for food