Annual seed weed germinating mainly in the spring, but also in late summer. Prefers nutrient-rich, loose, loamy soils.
Cotyledons are narrow, long-oval, slightly stemmed (Picture 1). Leaves are triangular with broad cordate base, 2-4 pointed teeth on both sides, long entire tip without a mealy coating (Picture 2). Inflorescence balls in branched terminal and axial ears or cymes which are leafless on top (Picture 3). Forms 1,000-15,000 black, 1.5-2 mm round seeds (Picture 4), which remain viable for a long period (10-20 years) in soil. Germination temperature is between 5 and 30 °C.