Annual seed weed germinating in late spring early summer. Loves well-ventilated, well-watered, nutrient-rich tilth soil. Very heat-loving.
Cotyledons are inversed, spatula-shaped, fairly thick with rounded tip, the underside is reddish (Picture 1). Leaves are entire, the lowest are longitudinal-ovate, the leaves in the middle longitudinal and the topmost spear shaped . Leaves have a reddish outline, The underside or leaf edges and stems with a reddish tint (Picture 2). Numerous small inflorescence bundles in loose, leaf-fold and terminal ears, or in scarcely leafed cymes (Picture 3). Plant and inflorescences are without any mealy coating. Each plant produces about 4,000 dark-brown glossy and rounded seeds (Picture 4) which remain viable for a long time in the soil. Germination starts at 20 °C to a maximum of 40 °C.