Difference between revisions of "Cyperus distans"

Linnaeus f.

Suppl. Pl., 103. 1782.

Basionym: Cyperus elatus Rottbøll Descr. Icon. Rar. Pl., 37, plate 10. 1773,
Treatment appears in FNA Volume 23. Mentioned on page 239.
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V23/V23_270.xml
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|genus=Cyperus
 
|genus=Cyperus
 
|subgenus=Cyperus subg. Cyperus
 
|subgenus=Cyperus subg. Cyperus

Revision as of 19:07, 24 September 2019

Herbs, perennial, rhizomatous. Culms single or close together, trigonous, (10–)40–80(–120) cm × 1.2–2.5(–5) mm, glabrous. Leaves 2–5, pleated, (10–)20–50(–90) cm × 2–5(–10) mm. Inflorescences: spikes 1–4(–7), loose, broadly ovoid to ovoid-pyramidal, 25–35 × 25–35 mm; rays (4–)5–6(–8), (1–)3–8(–16) cm, glabrous; 2d order rays (0–)1–5, 5–15(–50) mm; bracts 4–7, ascending at 30–45°, pleated, (5–)20–40(–60) × (2–)3–8(–11) mm; 2d order bracts 1–4 per ray, 5–10(–30) × 0.5–1 mm, scabridulous; rachilla persistent, wingless (or very narrowly winged, not clasping achene). Spikelets (10–)20–35(–45), seemingly flattened proximally from spreading floral scales, becoming terete apically, linear, (10–)13–18(–25) × 1.2–1.5(–1.6) mm; floral scales deciduous, (10–)12–20(–25), laterally light reddish brown to dark red, medially greenish, laterally ribless, medially 3–5-ribbed, oblong-ovate, 1.7–2(–2.4) × 0.9–1.2 mm, apex obtuse, barely reaching next scale, apex entire, emarginate, mucro at most 0.3 mm. Flowers: anthers 0.4–0.5 mm; styles 0.3–0.6 mm; stigmas 1–1.8(–2) mm. Achenes dark brown, narrowly oblong, (1.3–)1.4–1.6(–1.7) × (0.3–)0.4–0.5 mm, base cuneate to ± stipelike, apex acute, not apiculate, surfaces papillose.


Phenology: Fruiting summer.
Habitat: Marshes
Elevation: 0 m

Distribution

V23 270-distribution-map.jpg

Fla., N.C., Mexico, West Indies (Dominican Republic south through the Lesser Antilles), South America, Asia, Africa.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Cyperus distans"
Gordon C. Tucker* +, Brian G. Marcks* +  and J. Richard Carter * +
Linnaeus f. +
Cyperus elatus +
Fla. +, N.C. +, Mexico +, West Indies (Dominican Republic south through the Lesser Antilles) +, South America +, Asia +  and Africa. +
Marshes +
Fruiting summer. +
Suppl. Pl., +
Undefined subg. Chlorocyperus +, Cyperus subg. Mariscus +  and Undefined subg. Papyrus +
Cyperus distans +
Cyperus subg. Cyperus +
species +