Difference between revisions of "Cyperus floribundus"
Rhodora 99: 330. 1998.
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|year=1998 | |year=1998 | ||
}} | }} | ||
| − | |basionyms={{Treatment/ID/ | + | |special_status={{Treatment/ID/Special_status |
| + | |code=F | ||
| + | |label=Illustrated | ||
| + | }} | ||
| + | |basionyms={{Treatment/ID/Basionym | ||
|name=Cyperus uniflorus var. floribundus | |name=Cyperus uniflorus var. floribundus | ||
|authority=Kükenthal | |authority=Kükenthal | ||
| − | }}{{Treatment/ID/ | + | |rank=variety |
| + | |publication_title=in H. G. A. Engler, Pflanzenr. | ||
| + | |publication_place=20[IV,101]: 521. 1936 | ||
| + | }} {{Treatment/ID/Basionym | ||
|name=Cyperus uniflorus | |name=Cyperus uniflorus | ||
|authority=Torrey & Hooker | |authority=Torrey & Hooker | ||
| + | |rank=species | ||
| + | |publication_title= | ||
| + | |publication_place=1836 | ||
}} | }} | ||
|synonyms= | |synonyms= | ||
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|elevation=0–1000 m | |elevation=0–1000 m | ||
|distribution=Tex.;Mexico. | |distribution=Tex.;Mexico. | ||
| − | |discussion=<p>Included previously in Cyperus retroflexus (or its synonym C. uniflorus), C. floribundus has a much narrower geographic range (southern Texas and northeastern Mexico) and differs in features of spikelet morphology (J. R. Carter and S. D. Jones 1997).</p> | + | |discussion=<p>Included previously in <i>Cyperus retroflexus</i> (or its synonym <i>C. uniflorus</i>), <i>C. floribundus</i> has a much narrower geographic range (southern Texas and northeastern Mexico) and differs in features of spikelet morphology (J. R. Carter and S. D. Jones 1997).</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Cyperus floribundus | name=Cyperus floribundus | ||
| − | |||
|authority=(Kükenthal) J. Rich. Carter & S. D. Jones | |authority=(Kükenthal) J. Rich. Carter & S. D. Jones | ||
|rank=species | |rank=species | ||
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|publication title=Rhodora | |publication title=Rhodora | ||
|publication year=1998 | |publication year=1998 | ||
| − | |special status= | + | |special status=Illustrated |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V23/V23_322.xml |
|genus=Cyperus | |genus=Cyperus | ||
|subgenus=Cyperus subg. Cyperus | |subgenus=Cyperus subg. Cyperus | ||
Latest revision as of 21:39, 5 November 2020
Herbs, perennial, cespitose, rhizomatous. Culms trigonous, basally tuberous thickened, 15–40 cm × 1–2.5 mm, glabrous. Leaves flat to V-shaped, 10–30 cm × 1–2 mm. Inflorescences: spike 1, densely oblong to ellipsoid, 8–36 × 8–20 mm; rays 4–12, 10–20 cm; bracts 3–6, horizontal to ascending at 30°, V-shaped, 3–15 cm × (3–)4–5.8 mm; rachilla deciduous, wings 0.5–0.7 mm wide. Spikelets (5–)20–35(–60), linear to oblong, quadrangular; 4–12(–21) × 0.7–1.2 mm, base narrowed to 0.4–1 mm; floral scales persistent, 1–3(–5), appressed, laterally whitish to reddish brown, stramineous with reddish spots, medially green, laterally 3–6-ribbed (midrib distinctly scabrid at 30X), narrowly oblong to ovate, 2.6–4.8 × 1.6–2 mm; apex rounded to ± acute, entire, with mucro 0.3–0.5 mm; sterile terminal scale involute, 0.4–0.6 mm wide, uncinate; distal floral scales with cusp 0.6–1.9. Flowers: anthers 0.5–1.3 mm; styles 0.4–0.5 mm; stigmas 0.5–0.9 mm. Achenes light brown to reddish brown, sessile to slightly stipitate, narrowly ellipsoid, 1.8–2.4 × 0.6–0.8 mm, apex slightly apiculate, surfaces puncticulate.
Phenology: Fruiting mid summer–early fall (Jul–Sep).
Habitat: Damp, disturbed soils, croplands
Elevation: 0–1000 m
Discussion
Included previously in Cyperus retroflexus (or its synonym C. uniflorus), C. floribundus has a much narrower geographic range (southern Texas and northeastern Mexico) and differs in features of spikelet morphology (J. R. Carter and S. D. Jones 1997).
Selected References
None.