Difference between revisions of "Melinis repens"
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|name=Rhynchelytrum roseum | |name=Rhynchelytrum roseum | ||
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|name=Rhynchelytrum repens | |name=Rhynchelytrum repens | ||
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|hierarchy=Poaceae;Poaceae subfam. Panicoideae;Poaceae tribe Paniceae;Melinis;Melinis repens | |hierarchy=Poaceae;Poaceae subfam. Panicoideae;Poaceae tribe Paniceae;Melinis;Melinis repens | ||
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name=Melinis repens | name=Melinis repens | ||
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|authority=(Willd.) Zizka | |authority=(Willd.) Zizka | ||
|rank=species | |rank=species | ||
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|basionyms= | |basionyms= | ||
|family=Poaceae | |family=Poaceae | ||
| + | |illustrator=Linda A. Vorobik;Karen Klitz | ||
| + | |illustration copyright=Utah State University | ||
|distribution=Puerto Rico;Md.;N.Mex.;Tex.;La.;Virgin Islands;Calif.;Pacific Islands (Hawaii);Ga.;N.C.;Ariz.;Fla. | |distribution=Puerto Rico;Md.;N.Mex.;Tex.;La.;Virgin Islands;Calif.;Pacific Islands (Hawaii);Ga.;N.C.;Ariz.;Fla. | ||
|reference=None | |reference=None | ||
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|publication year= | |publication year= | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/200273ad09963decb8fc72550212de541d86569d/coarse_grained_fna_xml/V25/V25_1310.xml |
|subfamily=Poaceae subfam. Panicoideae | |subfamily=Poaceae subfam. Panicoideae | ||
|tribe=Poaceae tribe Paniceae | |tribe=Poaceae tribe Paniceae | ||
Latest revision as of 18:56, 11 May 2021
Plants annuals or short-lived perennials. Culms (20)40-150 cm, decumbent, usually rooting at the lower nodes; nodes pubescent; internodes glabrous or with papillose-based hairs, hairs to 4.7 mm. Sheaths glabrous or with papillose-based hairs, hairs 0.5-4.7 mm; ligules of hairs, 0.7-2.2 mm; blades 3.6-27 cm long, 2-9(14) mm wide, flat, glabrous or pubescent, with or without papillose-based hairs. Panicles (4)6-22 cm long, (1.5)2.5-12 cm wide; primary branches to 11 cm, ends of the primary branches, secondary branches, and pedicels capillary; pedicels 0.6-5.3 mm, usually hairy distally, hairs to 6.3 mm. Spikelets 2-5.7 mm; calluses hairy, hairs to 4 mm. Lower glumes 0-1.7 mm, pubescent, sometimes with papillose-based hairs, apices rounded, truncate, or slightly cleft; upper glumes (1.9)2.3-4.9 mm, enclosing the upper florets, gibbous basally, densely pubescent, hairs to 7 mm, sometimes papillose-based, varying from white to rose or darkish purple, apices tapering, beaked, glabrous, unawned or awned, awns to 4.1 mm; lower florets staminate or sterile; lower lemmas 1.9-4.8 mm, unawned or with awns to 4.2 mm; lower paleas 0.9-4 mm; anthers (0.8)1.5-2.6 mm, orange-brown to orange; upper lemmas 1.8-2.7 mm, glabrous; anthers 3, 1.2-1.7 mm, orange-brown to orange. Caryopses 1.3-1.9 mm long, 0.6-0.9 mm wide. 2n = 36.
Distribution
Puerto Rico, Md., N.Mex., Tex., La., Virgin Islands, Calif., Pacific Islands (Hawaii), Ga., N.C., Ariz., Fla.
Discussion
Melinis repens is probably native to Africa and western Asia. It is now established throughout the subtropics, including the southern portion of the Flora region. It has been grown as an ornamental, but it is now established and often weedy in warmer portions of the region.
Plants in the Flora region belong to Melinis repens (Willd.) Zizka subsp. repens.
Selected References
None.