Native to North America, and found throughout the eastern half of the U.S. and Canada, and west to Texas and possibly Arizona.
A perennial weed reproducing from seeds. The plant is almost vine-like in its growth, with its thin stems rapidly growing over the top of other foliage. Usually found in moist habitats in ditches, marshes, or along roadsides.
Stems are extremely long and thin, with sparse foliage and many branches. Along the stems there are angles, with downward-pointing, rough hairs at these locations. The leaves are whorled, with 4 to 6 long, thin leaves at each node. The tiny white flowers occur in small clusters at the tips of the stems.
Characteristicts Important to Control:
Preventive control in turf or landscape with pre-emergent herbicides, and post-emergent control in turf with a selective broadleaf herbicide.