Dichanthelium acuminatum (Sw.) Gould & C.A.Clark  
Family: Poaceae
hairy panic grass, twice-flowering panic grass
[Panicum acuminatum Sw., Panicum lanuginosum "Elliott, non Bosc ex Spreng.", Panicum lanuginosum var. lanuginosum "Elliott, non Bosc ex Spreng."]
Dichanthelium acuminatum image
from USDA Plants website  
Etymology: Dichanthelium: Greek dich for "two" and anthelium for "flowering" - a fair translation is "twice-flowering"
Plants: perennial grass
Dichanthelium acuminatum image
Dichanthelium acuminatum image
Dichanthelium acuminatum image
Dichanthelium acuminatum image