Difference between revisions of "Aristida oligantha"
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| − | |distribution=Del.;D.C;Wis.;W.Va.;Fla.;Wyo.;N.H.;N.J.;N.Mex.;Tex.;La.;Tenn.;N.C.;S.C.;Pa.;B.C.;Ont.;Conn.;Mass.;R.I.;Vt.;Kans.;Nebr.;Okla.;S.Dak.;N.Y.;Va.;Calif.;Ala.;Ark.;Ill.;Ga.;Ind.;Iowa;Ariz.;Idaho;Maine;Md.;Ohio;Mo.;Minn.;Mich.;Miss.;Ky.;Oreg. | + | |distribution=Del.;D.C.;Wis.;W.Va.;Fla.;Wyo.;N.H.;N.J.;N.Mex.;Tex.;La.;Tenn.;N.C.;S.C.;Pa.;B.C.;Ont.;Conn.;Mass.;R.I.;Vt.;Kans.;Nebr.;Okla.;S.Dak.;N.Y.;Va.;Calif.;Ala.;Ark.;Ill.;Ga.;Ind.;Iowa;Ariz.;Idaho;Maine;Md.;Ohio;Mo.;Minn.;Mich.;Miss.;Ky.;Oreg. |
|discussion=<p><i>Aristida oligantha</i> grows in waste places, dry fields, roadsides, along railroads, and in burned areas, usually in sandy soil. It has been reported from Coahuila, Mexico, but is otherwise unknown outside southern Canada and the United States.</p> | |discussion=<p><i>Aristida oligantha</i> grows in waste places, dry fields, roadsides, along railroads, and in burned areas, usually in sandy soil. It has been reported from Coahuila, Mexico, but is otherwise unknown outside southern Canada and the United States.</p> | ||
|tables= | |tables= | ||
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|illustrator=Linda A. Vorobik;Andy Sudkamp | |illustrator=Linda A. Vorobik;Andy Sudkamp | ||
|illustration copyright=Utah State University | |illustration copyright=Utah State University | ||
| − | |distribution=Del.;D.C;Wis.;W.Va.;Fla.;Wyo.;N.H.;N.J.;N.Mex.;Tex.;La.;Tenn.;N.C.;S.C.;Pa.;B.C.;Ont.;Conn.;Mass.;R.I.;Vt.;Kans.;Nebr.;Okla.;S.Dak.;N.Y.;Va.;Calif.;Ala.;Ark.;Ill.;Ga.;Ind.;Iowa;Ariz.;Idaho;Maine;Md.;Ohio;Mo.;Minn.;Mich.;Miss.;Ky.;Oreg. | + | |distribution=Del.;D.C.;Wis.;W.Va.;Fla.;Wyo.;N.H.;N.J.;N.Mex.;Tex.;La.;Tenn.;N.C.;S.C.;Pa.;B.C.;Ont.;Conn.;Mass.;R.I.;Vt.;Kans.;Nebr.;Okla.;S.Dak.;N.Y.;Va.;Calif.;Ala.;Ark.;Ill.;Ga.;Ind.;Iowa;Ariz.;Idaho;Maine;Md.;Ohio;Mo.;Minn.;Mich.;Miss.;Ky.;Oreg. |
|reference=None | |reference=None | ||
|publication title= | |publication title= | ||
|publication year= | |publication year= | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V25/V25_1000.xml |
|subfamily=Poaceae subfam. Aristidoideae | |subfamily=Poaceae subfam. Aristidoideae | ||
|tribe=Poaceae tribe Aristideae | |tribe=Poaceae tribe Aristideae | ||
Revision as of 21:58, 27 May 2020
Plants annual. Culm 25-55 cm, erect or geniculate at the base, highly branched. Leaves cauline; sheaths usually shorter than the internodes, lowermost sheaths appressed-pilose basally; collars glabrous; ligules less than 0.5 mm; blades usually 4-12 cm long, 0.5-1.5 mm wide, flat or loosely involute, somewhat lax, glabrous or scabridulous, pale green. Inflorescences spicate or racemose, (5)7-20 cm long, 2-4 cm wide; primary branches rarely developed. Spikelets divergent, pedicels with axillary pulvini. Glumes unequal, glabrous, brownish-green with a purple tinge; lower glumes (9)12-22(28) mm, 3-7-veined, midvein extended into a 1-13 mm awn between 2 delicate setae; upper glumes (7)11-20(24) mm, 1-veined; calluses 0.5-2 mm; lemmas (9)12-22(23) mm, glabrous, light-colored, often mottled; awns (8)12-65(70) mm, subequal, spreading; anthers usually 1 and less than 0.5 mm, rarely 3 and 3-4 mm. Caryopses 8-14 mm, brown. 2n = 22.
Distribution
Del., D.C., Wis., W.Va., Fla., Wyo., N.H., N.J., N.Mex., Tex., La., Tenn., N.C., S.C., Pa., B.C., Ont., Conn., Mass., R.I., Vt., Kans., Nebr., Okla., S.Dak., N.Y., Va., Calif., Ala., Ark., Ill., Ga., Ind., Iowa, Ariz., Idaho, Maine, Md., Ohio, Mo., Minn., Mich., Miss., Ky., Oreg.
Discussion
Aristida oligantha grows in waste places, dry fields, roadsides, along railroads, and in burned areas, usually in sandy soil. It has been reported from Coahuila, Mexico, but is otherwise unknown outside southern Canada and the United States.
Selected References
None.