Cenchrus spinifex Cav.

Synonym:  Cenchrus longispinus (Hack.) Fernald 

Natural range:   Widespread in warm regions

Habitat:  Weedy

Florida status:  Native, common, throughout the state

Recognition:  Some leaf blades > 3 mm wide (vs. usually < 3 mm wide in C. gracillimus), often pubescent adaxially, the racemes often (not always) nestled in a leaf sheath; ligule > 0.5 mm long; burrs crowded or  uncrowded, usually pubescent on the outside at the base, 4-6 mm diameter (vs. usually narrower in C. gracillimus).