Native to North America, where it is found from Alaska to the Gulf States, as well as in many other temperate regions of the world.
An annual plant that reproduces from seeds. A common weed along moist roadsides, lawns, and drainage areas.
Plants form tufts of several stems and numerous leaves arising from the base, appearing very grass-like. Stems are round, leaves are flattened on the upper surface and rounded below, and both stems and leaves are without hairs. At the upper stem there are a number of short branches that produce the flower heads, which are present in small groups of 1 to 6 heads.
Characteristicts Important to Control:
Control of soil moisture will discourage these plants. Post-emergence control is effective with a non-selective systemic herbicide.