Difference between revisions of "Setaria pumila"
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|subfamily=Poaceae subfam. Panicoideae | |subfamily=Poaceae subfam. Panicoideae | ||
|tribe=Poaceae tribe Paniceae | |tribe=Poaceae tribe Paniceae | ||
Revision as of 21:02, 5 November 2020
Plants annual. Culms 30-130 cm. Sheaths glabrous; ligules ciliate; blades 4-10 mm wide, loosely twisted, adaxial surfaces with papillose-based hairs basally. Panicles 3-15 cm, uniformly thick, erect, densely spicate; rachises hispid; bristles 4-12, 3-8 mm, antrorsely scabrous. Spikelets 2-3.4 mm, strongly turgid. Lower glumes about 1/3 as long as the spikelets, 3-veined, acute; upper glumes about 1/2 as long as the spikelets, 5-veined, ovate; upper florets often staminate; lower lemmas equaling the upper lemmas; lower paleas equaling the lower lemmas, broad; upper lemmas conspicuously exposed, strongly transversely rugose. 2n = 36, 72.
Distribution
Va., Colo., Mass., Tex., La., Ohio, Ariz., Utah, Ala., D.C., Ark., Calif., Conn., Del., Fla., Ga., Pacific Islands (Hawaii), Iowa, Idaho, Ill., Ind., Kans., Ky., Md., Maine, Mich., Minn., Mo., Miss., Mont., N.C., N.Dak., Nebr., N.H., N.J., N.Mex., Nev., N.Y., Okla., Oreg., Pa., R.I., S.C., S.Dak., Tenn., Vt., Wash., Wis., W.Va., Wyo., Alta., B.C., Man., N.B., Nfld. and Labr. (Labr.), N.S., Ont., P.E.I., Que., Sask.
Discussion
Selected References
None.
Key
| 1 | Spikelets 3-3.4 mm long; bristles yellow | Setaria pumila subsp. pumila |
| 2 | Spikelets 2-2.5 mm long; bristles reddish subsp. pallidefusca | Setaria pumila subsp. pallidefusca |