Difference between revisions of "Leptochloa panicea"
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|distribution=Ark.;Miss.;Tenn.;Fla.;Puerto Rico;N.J.;Ala.;Ariz.;Calif.;Ga.;Ill.;Kans.;Ky.;La.;Mo.;N.C.;N.Mex.;Okla.;S.C.;Tex.;S.Dak.;Pa.;Nev.;Va.;Colo.;Virgin Islands;Ind.;Mass.;Ohio;Utah | |distribution=Ark.;Miss.;Tenn.;Fla.;Puerto Rico;N.J.;Ala.;Ariz.;Calif.;Ga.;Ill.;Kans.;Ky.;La.;Mo.;N.C.;N.Mex.;Okla.;S.C.;Tex.;S.Dak.;Pa.;Nev.;Va.;Colo.;Virgin Islands;Ind.;Mass.;Ohio;Utah | ||
| − | |discussion=<p>Leptochloa panicea is a cosmopolitan species that somewhat resembles L. chinensis, an aggressive weed that has not yet been found in the Flora region. It differs in its sparsely to densely hairy, rather than glabrous or almost glabrous, sheaths and blades. Two of its three subspecies grow in the Flora region.</p> | + | |discussion=<p><i>Leptochloa panicea</i> is a cosmopolitan species that somewhat resembles <i>L. chinensis</i>, an aggressive weed that has not yet been found in the Flora region. It differs in its sparsely to densely hairy, rather than glabrous or almost glabrous, sheaths and blades. Two of its three subspecies grow in the Flora region.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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name=Leptochloa panicea | name=Leptochloa panicea | ||
| − | |||
|authority=(Retz.) Ohwi | |authority=(Retz.) Ohwi | ||
|rank=species | |rank=species | ||
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|basionyms= | |basionyms= | ||
|family=Poaceae | |family=Poaceae | ||
| − | |illustrator=Linda A. Vorobik | + | |illustrator=Linda A. Vorobik;Karen Klitz |
| + | |illustration copyright=Utah State University | ||
|distribution=Ark.;Miss.;Tenn.;Fla.;Puerto Rico;N.J.;Ala.;Ariz.;Calif.;Ga.;Ill.;Kans.;Ky.;La.;Mo.;N.C.;N.Mex.;Okla.;S.C.;Tex.;S.Dak.;Pa.;Nev.;Va.;Colo.;Virgin Islands;Ind.;Mass.;Ohio;Utah | |distribution=Ark.;Miss.;Tenn.;Fla.;Puerto Rico;N.J.;Ala.;Ariz.;Calif.;Ga.;Ill.;Kans.;Ky.;La.;Mo.;N.C.;N.Mex.;Okla.;S.C.;Tex.;S.Dak.;Pa.;Nev.;Va.;Colo.;Virgin Islands;Ind.;Mass.;Ohio;Utah | ||
|reference=None | |reference=None | ||
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|publication year= | |publication year= | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V25/V25_90.xml |
|subfamily=Poaceae subfam. Chloridoideae | |subfamily=Poaceae subfam. Chloridoideae | ||
|tribe=Poaceae tribe Cynodonteae | |tribe=Poaceae tribe Cynodonteae | ||
Revision as of 20:38, 16 December 2019
Plants annual. Culms (5)13-150 cm, usually erect, compressed, branching; internodes hollow. Sheaths sparsely or densely hairy, particularly distally, hairs papillose-based; ligules 0.6-3.2 mm, membranous, truncate, erose; blades 6-25 cm long, 2-21 mm wide, glabrous or sparsely pilose on both surfaces. Panicles 8-30 cm, with 3-100 racemose branches; branches 1-19 cm, ascending to reflexed. Spikelets 2-4 mm, distant to imbricate, green, magenta, or maroon, with 2-5(6) florets. Glumes sometimes exceeding the florets, linear to narrowly elliptic, acute, attenuate, or aristate; lower glumes 1.6-4 mm, linear to lanceolate; upper glumes 1.6-3.6 mm, lanceolate; lemmas 0.9-1.7 mm, glabrous or somewhat sericeous, acute to obtuse; paleas glabrous or sericeous; anthers 3, 0.2-0.3 mm. Caryopses 0.8-1.2 mm long, 0.5-0.6 mm wide, nearly round in cross section, with or without a ventral groove, apices acute to broadly obtuse.
Distribution
Ark., Miss., Tenn., Fla., Puerto Rico, N.J., Ala., Ariz., Calif., Ga., Ill., Kans., Ky., La., Mo., N.C., N.Mex., Okla., S.C., Tex., S.Dak., Pa., Nev., Va., Colo., Virgin Islands, Ind., Mass., Ohio, Utah
Discussion
Leptochloa panicea is a cosmopolitan species that somewhat resembles L. chinensis, an aggressive weed that has not yet been found in the Flora region. It differs in its sparsely to densely hairy, rather than glabrous or almost glabrous, sheaths and blades. Two of its three subspecies grow in the Flora region.
Selected References
None.
Key
| 1 | Glumes linear to narrowly lanceolate, exceeding the florets; lemmas 0.9-1.2 mm long; caryopses without a ventral groove, often somewhat coarsely rugose, the apices broadly obtuse | Leptochloa panicea subsp. mucronata |
| 1 | Glumes lanceolate to narrowly elliptic, not or only slightly exceeding the florets; lemmas 1.3-1.7 mm long; caryopses usually with a narrow, shallow ventral groove, smooth, the apices broadly obtuse to acute | Leptochloa panicea subsp. brachiata |