010 Setaria viridis (L.) Beauv.
Nome comune: Pabbio comune; Panico falso; Panico selvatico; Pannocchiella; Panicastrella; Pesarone
Setaria viridis is a species of grass known by many common names, including green foxtail and green bristlegrass. It is native to Eurasia, but it is known on most continents as an introduced species and often a noxious weed. It is a hardy grass which grows in many types of urban, cultivated, and disturbed habitat, including vacant lots, sidewalks, railroads, lawns, and fields. It is a weed of many types of agricultural crops. It is the wild antecedent of the crop foxtail millet.
This is an annual grass with decumbent or erect stems growing up to a meter long, and known to reach two meters or more at times. The leaf blades are up to 40 centimeters long and 2.5 wide, their bases with hairy and often purple-tinged margins. The inflorescence is a dense, compact, spikelike panicle up to 20 centimeters long, growing erect or nodding. It is full of many spikelets, each of which is accompanied by up to three stiff bristles.