Setaria faberii Herrm.
Giant Bristlegrass

Habit: 		Erect, tall tufted annual.
Culms: 		50-140 cm. tall, simple or branched at the base, erect or spreading, mostly glabrous.
Blades: 	Flat, 5-30 cm. long, -11 mm. wide, linear-lanceolate, not twisted, long-acuminate,
		glabrous to scabrous below.
Sheaths: 	Shorter than the internodes, keeled, smooth except sometimes towards the summit,
		ciliate on the margins.
Ligule: 	Fringed membrane, 03-1.4 mm long..
Inflorescence: 	Panicle erect or somewhat nodding, densely flowered, green or yellowish,
		cylindric but tapering a little at the summit, usually less than 7 cm. long and
		1.2-2.5 cm wide, the axis densely villous with hairs about 1 mm. long, the branches
		very short bearing mostly 5-6 spikelets, 5 or more upwardly barbed bristles mostly
		3-4 times the length of the spikelet, rachis pubescent.
Spikelets: 	2.2-3.1 mm. long, elliptic, spikelets failing entire.
Glumes: 	First about one third to one fourth the length of the spikelet, 1-1.8 mm long,
		the second and sterile lemma 1.4-2.3 mm long, the sterile palea not fully developed.
Lower floret:	Staminate, lemma 2.3-2.8 mm long.
Fertile lemmas:	Elliptic, 2.2-2.6 mm long, obviously wrinkled, glabrous, palea present
		and shorter than the lemma.
Fruit: 		Very finely transversely wrinkled or ridged.
Habitat: 	Weed in waste places and cultivated ground.  July-September.
Kansas Range:	Throughout.
Remarks: 	Very common weeds, of some forage value.