Setaria geniculata, Knotroot Foxtail, marsh bristlegrass, knotroot bristlegrass, yellow bristlegrass, slender pigeon grass)
Description: perennial grass
Place of origin: North and South America
Urban habitat: commonly found along coasts, stream and river banks, roadsides, railroads, in vacant lots, drainage ditches, waste sites, lawns, cultivated landscapes; thrives in full sun or partial shade.
Ecological function: disturbance-adapted colonizer; food for wildlife and livestock.
History: Native to North America, Setaria parviflora is currently also found throughout the warm temperate and tropical regions of Asia, Australia, and the Philippines. Its seeds are edible, used like rice or ground to make porridge or used in baking. It has been used medicinally.