Difference between revisions of "Cyperus distinctus"
Syn. Pl. Glumac. 2: 24. 1855.
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|place=2: 24. 1855 | |place=2: 24. 1855 | ||
|year=1855 | |year=1855 | ||
| + | }} | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=F | ||
| + | |label=Illustrated | ||
}} | }} | ||
|basionyms= | |basionyms= | ||
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|name=Cyperus virens var. brittonii | |name=Cyperus virens var. brittonii | ||
|authority=C. B. Clarke | |authority=C. B. Clarke | ||
| + | |rank=variety | ||
}} | }} | ||
|hierarchy=Cyperaceae;Cyperus;Cyperus subg. Pycnostachys;Cyperus distinctus | |hierarchy=Cyperaceae;Cyperus;Cyperus subg. Pycnostachys;Cyperus distinctus | ||
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|elevation=0–50 m | |elevation=0–50 m | ||
|distribution=Fla.;Ga.;La.;S.C.;West Indies (Bahamas). | |distribution=Fla.;Ga.;La.;S.C.;West Indies (Bahamas). | ||
| − | |discussion=<p>The slender achenes with conspicuously swollen bases distinguish Cyperus distinctus from other species of subg. Pycnostachys.</p> | + | |discussion=<p>The slender achenes with conspicuously swollen bases distinguish <i>Cyperus distinctus</i> from other species of subg. Pycnostachys.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Cyperus distinctus | name=Cyperus distinctus | ||
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|authority=Steudel | |authority=Steudel | ||
|rank=species | |rank=species | ||
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|publication title=Syn. Pl. Glumac. | |publication title=Syn. Pl. Glumac. | ||
|publication year=1855 | |publication year=1855 | ||
| − | |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_239.xml |
|genus=Cyperus | |genus=Cyperus | ||
|subgenus=Cyperus subg. Pycnostachys | |subgenus=Cyperus subg. Pycnostachys | ||
Latest revision as of 21:39, 5 November 2020
Herbs, perennial, cespitose, rhizomatous. Culms terete, 40–60(–90)cm, glabrous. Leaves flat, 35–70 cm × 4–9(–12) mm. Inflorescences: heads hemispheric, 10–20 mm diam.; rays 5–9(–14), 3.5–10 cm; 2d order rays 0.5–2 cm; bracts 5–10, ± horizontal, flat, 12–40(–50) cm × 2–7 mm. Spikelets (25–)35–50(–60), ovoid, compressed, (3.5–)5–12(–14) × 2.5–3.5(–4) mm; floral scales 10–32, golden brown to brown, 2-keeled, laterally ribless, narrowly lanceolate, 2–2.2(–3) × 0.8–1.4 mm. Flowers: stamen 1; anthers 1 mm; styles 1 mm; stigmas 0.5 mm. Achenes brown, stipitate, narrowly ellipsoid, 1.5–2 × 0.2–0.4 mm, base swollen, spongy, stipe 0.2 × 0.2–0.3 mm, apex acute, beak slender, 0.2 mm, surfaces puncticulate.
Phenology: Fruiting summer.
Habitat: Damp grasslands, roadsides, ditches
Elevation: 0–50 m
Distribution
Fla., Ga., La., S.C., West Indies (Bahamas).
Discussion
The slender achenes with conspicuously swollen bases distinguish Cyperus distinctus from other species of subg. Pycnostachys.
Selected References
None.