Missouri Plants Bristlegrass   (Setaria sp.) Tracheophyta: Angiosperm: Monocot: Grass (Poaceae) Non-native from Europe Habitat: full sun waste areas. ID Features: seed head with bristles. Natural History: Bristlegrass is a very common weed whose seed heads look like miniature bristle brushes. It is a widely recognized weed because it is so common and used in play by youths. Some species grow to over 4 feet but most are nor more than 1 to 2 feet tall. They can be a serious pest in croplands.

The information is from: Weeds by Alexander C. Martin, Golden Press, New York, ©1972.