Difference between revisions of "Urochloa platyphylla"
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|distribution=Md.;Okla.;Miss.;Tex.;La.;Mo.;Ala.;Tenn.;N.C.;S.C.;Va.;Ark.;Ill.;Ga.;Ky.;Ariz.;Fla. | |distribution=Md.;Okla.;Miss.;Tex.;La.;Mo.;Ala.;Tenn.;N.C.;S.C.;Va.;Ark.;Ill.;Ga.;Ky.;Ariz.;Fla. | ||
| − | |discussion=<p | + | |discussion=<p>Urochloa platyphylla is a weedy species found in open, sandy soil in the southeastern United States, West Indies, and South America. Morrone and Zuloaga (1993) considered reports of its occurrence in Mexico as doubtful, possibly being based on misidentified specimens of Urochloa plantaginea.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|basionyms= | |basionyms= | ||
|family=Poaceae | |family=Poaceae | ||
| + | |illustrator=Linda A. Vorobik and Cindy Roché | ||
|distribution=Md.;Okla.;Miss.;Tex.;La.;Mo.;Ala.;Tenn.;N.C.;S.C.;Va.;Ark.;Ill.;Ga.;Ky.;Ariz.;Fla. | |distribution=Md.;Okla.;Miss.;Tex.;La.;Mo.;Ala.;Tenn.;N.C.;S.C.;Va.;Ark.;Ill.;Ga.;Ky.;Ariz.;Fla. | ||
|reference=None | |reference=None | ||
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|publication year= | |publication year= | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/314eb390f968962f596ae85f506b4b3db8683b1b/coarse_grained_fna_xml/V25/V25_1330.xml |
|subfamily=Poaceae subfam. Panicoideae | |subfamily=Poaceae subfam. Panicoideae | ||
|tribe=Poaceae tribe Paniceae | |tribe=Poaceae tribe Paniceae | ||
Revision as of 16:15, 30 October 2019
Plants annual. Culms 25-100 cm, decumbent, rooting at the lower nodes; nodes glabrous. Sheaths glabrous or sparsely pilose; ligules 0.5-1 mm; blades 2.5-17.5 cm long, 3-13 mm wide, glabrous or sparsely pilose, bases subcordate, not clasping the stems, margins ciliate basally, with papillose-based hairs. Panicles 6-16 cm long, 2-2.5 cm wide, with 2-8 spikelike primary branches in 2 ranks; primary branches 3-8 cm, axils pubescent, axes 1.3-2.5 mm wide, flat, usually glabrous, occasionally pilose dorsally; secondary branches rarely present; pedicels shorter than the spikelets, scabrous and sparsely pilose. Spikelets 3.8-5 mm long, 2-2.5 mm wide, ovoid, bi-convex; solitary, appressed to the branches, in 2 rows. Glumes scarcely separated; lower glumes 1.2-1.8 mm, to 1/3 as long as the spikelets, obtuse, glabrous, 5(-7)-veined, not clasping the base of the spikelets; upper glumes 3.2-4.7 mm, glabrous, 7(-9)-veined; lower florets sterile; lower lemmas 3.2-4.7 mm, glabrous, 5-veined; lower paleas present; upper lemmas 2.8-3.4 mm long, 1.8-2.3 mm wide, apices incurved, broadly acute to rounded, mucronulate; anthers about 1 mm. Caryopses 1.5-2.2 mm. 2n = 36.
Distribution
Md., Okla., Miss., Tex., La., Mo., Ala., Tenn., N.C., S.C., Va., Ark., Ill., Ga., Ky., Ariz., Fla.
Discussion
Urochloa platyphylla is a weedy species found in open, sandy soil in the southeastern United States, West Indies, and South America. Morrone and Zuloaga (1993) considered reports of its occurrence in Mexico as doubtful, possibly being based on misidentified specimens of Urochloa plantaginea.
Selected References
None.