Noun tumbleweed has 4 senses
- 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
- 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
- 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
- tumbleweed, Amaranthus albus, Amaranthus graecizans - bushy plant of western United States
--4 is a kind of amaranth
,