Setaria

• Authority

  Acevedo-Rodríguez, Pedro & collaborators. 1996. Flora of St. John, U.S. Virgin Islands. Mem. New York Bot. Gard. 78: 1-581.

• Family

  Poaceae

• Scientific Name

  Setaria

• Description

  Genus Description - Annual or perennial herbs of diverse size and habitats; culms erect or decumbent, unbranched or sparingly branched. Leaves without auricles; sheath smooth; ligule a ciliate membrane or a fringe of hairs; blades linear, flattened, conduplicate or plicate. Main axis of inflorescence with appressed or spreading primary branches; secondary branches appressed or spreading or reduced to a fascicle of spikelets; rachis terminating in a bristle; disarticulation at the spikelet base; callus not differentiated. Spikelets abaxial, dorsiventrally compressed; lower glume encircling the spikelet base; upper glume 0.4-1 times spikelet length; lemma of lower floret membranous; lemma of upper floret as long as the lower floret, cartilaginous to indurate, rugose, dull, with involute margins, muticous. Caryopsis with a whitish or grayish embryo.