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. Grows under most cultivated or waste conditions.
Germination occurs anytime during the growing season when soil moisture is adequate.