Other names: Fall panicgrass, bluegrass, western or smooth witchgrass
Life cycle: Summer annual
Found in: Cropland, nurseries, turfgrass, landscapes and other noncrop areas throughout the U.S.
General description: Grass with round smooth sheaths that are bent at the nodes. It can reach 7 feet high and can be identified by its zigzagged growth pattern that is due to the bending at the nodes.
Seedlings: Have many hairs on the underside of the leaf blades. Leaves are rolled in the shoot, without auricles, and the ligule is a fringe of hair.
True leaves: The same as seedlings, but the lower surface is hairless and glossy. Range from 4" to 20" long and have a conspicuous midvein.
Flowers and fruit: Seedhead is a purplish wide panicle with yellow individual spikelets.