(n): any plant that crowds out cultivated plants
(n): prickly bushy Eurasian plant; a troublesome weed in central and western United States
(n): a low woody perennial plant usually having several major stems
(n): bushy annual weed of central North America having greenish flowers and winged seeds
(n): a low woody perennial plant usually having several major stems
(n): bushy plant of western United States
(n): any of various plants of the genus Amaranthus having dense plumes of green or red flowers; often cultivated for food