Redroot Pigweed

Common: Redroot Pigweed (also known as Common Amaranth, Carlessweed)

Scientific: Amaranthus retroflexus

Affected Crops: Corn, cotton, hay, soybeans, tobacco.

Identification: The lower stem of this plant is often red or red-striped, continuing all the way down to the taproot. Alternate, dull green leaves are covered with hairs and have prominent white veins underneath. The stems of a fully grown plant can measure 2-3 feet tall. Another identifier is its stiff, thick terminal head which has several densely crowded spikes.

Geographical Distribution: Particularly a Great Plains dweller, but found throughout the United States. Grows under most cultivated or waste conditions. Germination occurs anytime during the growing season when soil moisture is adequate.