tumbleweed (Noun) — Any plant that breaks away from its roots in autumn and is driven by the wind as a light rolling mass.
tumbleweed (Noun) — Prickly bushy Eurasian plant; a troublesome weed in central and western United States.
tumbleweed (Noun) — Bushy annual weed of central North America having greenish flowers and winged seeds.
tumbleweed (Noun) — Bushy plant of western United States.