prostrate pigweed

noun

: a prostrate or decumbent annual plant (Amaranthus blitoides) native to western North America but established as a weed elsewhere especially in waste places and neglected fields having alternate simple spatulate leaves and small greenish flowers in axillary clusters

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now