Difference between revisions of "Cyperus retrorsus"
Bot. Gaz. 3: 17. 1878.
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|name=Mariscus cylindricus | |name=Mariscus cylindricus | ||
|authority=Elliott | |authority=Elliott | ||
− | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Cyperus cylindricus | |name=Cyperus cylindricus | ||
|authority=(Elliott) Britton | |authority=(Elliott) Britton | ||
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|elevation=0–1000 m | |elevation=0–1000 m | ||
|distribution=Ala.;Ark.;Del.;D.C.;Fla.;Ga.;La.;Md.;Miss.;Mo.;N.J.;N.Y.;N.C.;Okla.;S.C.;Tenn.;Tex.;Va.;Mexico (Tamaulipas). | |distribution=Ala.;Ark.;Del.;D.C.;Fla.;Ga.;La.;Md.;Miss.;Mo.;N.J.;N.Y.;N.C.;Okla.;S.C.;Tenn.;Tex.;Va.;Mexico (Tamaulipas). | ||
− | |discussion=<p>Cyperus retrorsus was reported in Indiana (M. L. Horvat 1941); we have been unable to confirm the report.</p> | + | |discussion=<p><i>Cyperus retrorsus</i> was reported in Indiana (M. L. Horvat 1941); we have been unable to confirm the report.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year=1878 | |publication year=1878 | ||
|special status= | |special status= | ||
− | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V23/V23_323.xml |
|genus=Cyperus | |genus=Cyperus | ||
|subgenus=Cyperus subg. Cyperus | |subgenus=Cyperus subg. Cyperus |
Revision as of 16:07, 18 September 2019
Herbs, perennial, cespitose, shortly rhizomatous. Culms trigonous, 20–50(–85) cm × 1–2(–4) mm, glabrous. Leaves 3–6(–10), 10–40(–55) cm × 1.5–4(–5) mm, V- to inversely W-shaped. Inflorescence: spike 1, densely oblong-ovoid often with small basal branches, 8–16 × 4–12(–16) mm; rays 4–8(–11), 0.5–3.5(–8.5) cm; bracts (3–)4–6(–10), ascending at (30–)45°, flat to broadly V-shaped, (4–)14–30(–55) cm × 1–5 mm, scabridulous along margins only; rachilla deciduous, wings persistent, 0.2–0.3 mm wide. Spikelets 40–120, oblong-lanceoloid, subterete, 2.2–4(–4.5) × 0.8–1.6 mm; distal spikelet spreading or ascending; floral scales persistent, 2–5, appressed, brown to stramineous, or fuscous and lustrous, medially greenish and 1(–3)-ribbed, laterally greenish to yellowish white and 3–4-ribbed, oblong to oblong-lanceolate, 1.8–2.5 × 1–1.5 mm, subcoriacous. Flowers: anthers 0.3–0.5 mm; styles 0.5–0.8 mm; stigmas 0.6–0.9 mm. Achenes brown, oblong-ellipsoid, 1.2–1.7 × 0.5–0.6 mm, base cuneate, apex subacute, surfaces papillose.
Phenology: Fruiting summer (Jun–Aug).
Habitat: Open woods and thickets in moist to dry, sandy soils
Elevation: 0–1000 m
Distribution
![V23 323-distribution-map.jpg](/w/images/8/8a/V23_323-distribution-map.jpg)
Ala., Ark., Del., D.C., Fla., Ga., La., Md., Miss., Mo., N.J., N.Y., N.C., Okla., S.C., Tenn., Tex., Va., Mexico (Tamaulipas).
Discussion
Cyperus retrorsus was reported in Indiana (M. L. Horvat 1941); we have been unable to confirm the report.
Selected References
None.