Setaria pumila

(Poir.) Roem. & Schult.
Common names: Yellow foxtail Pigeon grass
Introduced
Treatment appears in FNA Volume 25. Treatment on page 558.

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
... more about "Setaria pumila"
James M. Rominger +
(Poir.) Roem. & Schult. +
Yellow foxtail +  and Pigeon grass +
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. +  and Sask. +
Introduced +
Gramineae +
Setaria pumila +
Setaria subg. Setaria +
species +