Foxtails
Setaria glauca (L.) Beauv. & Setaria virldis (L.) Beauv.
Erect annual grasses distinguished at maturity by their bottle brush or foxtail like terminal spikes. The spike of yellow foxtail is blunt with yellow bristles that are twice as long as the florets. The spike of green foxtail is more tapered and bristles are green and 2- 3 mm long. Yellow foxtail can also be distinguished by the long hairs at the base of the leaf blade.