Difference between revisions of "Digitaria serotina"
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|distribution=Va.;N.C.;Ga.;La.;Del.;Ala.;Pa.;Miss.;S.C.;Fla. | |distribution=Va.;N.C.;Ga.;La.;Del.;Ala.;Pa.;Miss.;S.C.;Fla. | ||
| − | |discussion=<p>Digitaria serotina is native to the coastal plain of the southeastern United States. It has also been found in Cuba, possibly as an introduction, and on a ballast dump in Philadelphia, Pennsylvania. Its densely hairy sheath and short, densely hairy blades make this one of the more distinctive species of Digitaria in the Flora region.</p> | + | |discussion=<p><i>Digitaria serotina</i> is native to the coastal plain of the southeastern United States. It has also been found in Cuba, possibly as an introduction, and on a ballast dump in Philadelphia, Pennsylvania. Its densely hairy sheath and short, densely hairy blades make this one of the more distinctive species of <i>Digitaria</i> in the Flora region.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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name=Digitaria serotina | name=Digitaria serotina | ||
| − | |||
|authority=(Walter) Michx. | |authority=(Walter) Michx. | ||
|rank=species | |rank=species | ||
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|basionyms= | |basionyms= | ||
|family=Poaceae | |family=Poaceae | ||
| − | |illustrator=Linda A. Vorobik | + | |illustrator=Linda A. Vorobik;Hana Pazdírková |
| + | |illustration copyright=Utah State University | ||
|distribution=Va.;N.C.;Ga.;La.;Del.;Ala.;Pa.;Miss.;S.C.;Fla. | |distribution=Va.;N.C.;Ga.;La.;Del.;Ala.;Pa.;Miss.;S.C.;Fla. | ||
|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_1068.xml |
|subfamily=Poaceae subfam. Panicoideae | |subfamily=Poaceae subfam. Panicoideae | ||
|tribe=Poaceae tribe Paniceae | |tribe=Poaceae tribe Paniceae | ||
Revision as of 20:30, 16 December 2019
Plants annual; often mat-forming. Culms 10-30 cm, decumbent and rooting at the lower nodes. Sheaths conspicuously and densely hairy, longer hairs 1.5-2.5 mm, papillose-based, shorter hairs about 0.5 mm, not papillose-based; ligules 1.5-2.5 mm; blades 2-9 cm long, 3-8 mm wide, conspicuously hairy on both surfaces, longer hairs 1.5-2.5 mm, papillose-based, shorter hairs about 0.5 mm, not papillose-based. Panicles with 2-9 spikelike primary branches, digitate or on rachises to 4 cm; primary branch axes 3-10 cm, wing-margined, wings wider than the midribs, lower and middle portions bearing spikelets in groups of 3; secondary branches rarely present; shortest pedicels 0.5-0.8 mm; midlength pedicels 1.5-2 mm; longest pedicels 3-3.5 mm, adnate to the branch axes basally. Spikelets homomorphic, 1.5-1.8 mm, lanceolate. Lower glumes absent; upper glumes 1/6-1/3 as long as the spikelets, margins and apices with appressed white hairs, hairs about 0.3 mm; lower lemmas 7-veined, veins equally spaced, appressed-pubescent between the inner lateral veins and on the margins, hairs 0.3-0.5 mm, minutely verrucose (use 50x magnification); upper lemmas yellow or tan at maturity. 2n - unknown.
Distribution
Va., N.C., Ga., La., Del., Ala., Pa., Miss., S.C., Fla.
Discussion
Digitaria serotina is native to the coastal plain of the southeastern United States. It has also been found in Cuba, possibly as an introduction, and on a ballast dump in Philadelphia, Pennsylvania. Its densely hairy sheath and short, densely hairy blades make this one of the more distinctive species of Digitaria in the Flora region.
Selected References
None.