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Haspan Flatsedge

Cyperus haspan L.

Comments

provided by eFloras
Description based on material from India and Africa. Kern (Fl. Malesiana 1974) claimed that correct spelling of epithet should be "halpan", which appears not to be true [Wilson, Cyperaceae Newsletter 9: 8. 1991; and Telopea 5: 598. 1994].
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of Pakistan Vol. 206: 143 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of Pakistan @ eFloras.org
editor
S. I. Ali & M. Qaiser
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eFloras.org
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Description

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Herbs, perennial, cespitose, shortly rhizomatous. Culms trigonous, (2–)25–60(–100) cm × 1–4 mm, soft (flattened in drying), glabrous. Leaves usually reduced to sheaths, occasionally with blades, flat to V-shaped, (3–)10–30 cm × (1–)2.5–5 mm. Inflorescences: heads loosely digitate; rays (5–)10–12(–15), 1–15(–20) cm; 2d order rays usually present, (1–)6–12(–25) mm; 3d order rays sometimes present, 1–6 mm; bracts 2(–3), horizontal to ascending at 30–60°, longer (3–)6–18 cm × 2–4 mm, shorter (0.5–)2.5–6.5 cm × 1–2(–3) mm. Spikelets 1–15, linear-lanceoloid, ± compressed-quadrangular, 3–18 × 1–1.6 mm; floral scales 10–20(–40), laterally reddish to greenish brown, dull, often clear-edged, medially greenish, laterally 1-ribbed, medially 1-ribbed, oblong to obovate, 1–1.5(–1.9) × 0.8–1 mm, apex mucronate, glabrous except for cluster of crystalline prickles at apex. Flowers: stamens 3; anthers 0.3–0.5 mm; styles 0.4–0.9 mm; stigmas 0.5–0.8(–1.3) mm. Achenes white or reddish brown, stipitate, globose to obovoid or ellipsoid, 0.5–0.6(–0.7) × 0.3–0.4(–0.5) mm, base nearly cuneate, stipe 0.1 × 0.1–0.2 mm, apex obtuse to acute, apiculate or entire, surfaces granular to papillose.
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cc-by-nc-sa-3.0
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 23: 150, 151 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
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eFloras.org
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Description

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Annual or perennial, 15-40 cm. Roots fibrous, reddish. Rhizome short, horizontal or ascending, with short internodes. Stem 1-2 mm diam., sharply trigonous, sides concave, smooth. Leaves c. half of stem length; sheaths up to 10 cm, usually distinctly reddish, soft, mouth oblique or, in leaves with blades, nearly straight; ligule 0; blades few, up to c. 15 cm, 2-3 mm wide, flat or channelled, margins and keel smooth, apex acute, slightly scabrous. Inflorescence a compound anthelodium, up to 90 mm; 1-2 bracts foliose, up to 70 mm, shorter than inflorescence; primary branches 7-12, up to 70 mm; secondary anthelodia 5-20 mm long, bracts glume-like; cluster of spikes 5-10 mm, formed by (1-)3-8 sessile spikes; spikes 3-12 x c. 1 mm, with 8-35 glumes; glume-like bract c. 1 mm, glume-like prophyll clasping, rounded, bi-nerved, sterile, c. 0.8; rachis c. 0.5 mm wide, tetrangular, reddish brown, internodes c. 1 mm, not clearly winged; glumes 1.3-1.6 mm, cymbiform, acute, slightly keeled near slightly recurved and barbed apex, sides brown or reddish-brown, obscurely bi-nerved, glossy, margins narrowly scarious. Stamens 3. Nut 1-1.4 x 0.8-1 mm, obovoid or ellipsoid, trigonous, white-reticulate or white-papillose.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of Pakistan Vol. 206: 143 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of Pakistan @ eFloras.org
editor
S. I. Ali & M. Qaiser
project
eFloras.org
original
visit source
partner site
eFloras

Distribution

provided by eFloras
Ala., Fla., Ga., La., Miss., N.C., S.C., Tex., Va.; Mexico; Central America; South America; Asia; Africa; Australia.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 23: 150, 151 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
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eFloras

Distribution

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Distribution: In tropics of Old and New World; Africa S of Sahara, East Africa, Pakistan, India eastwards.
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cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of Pakistan Vol. 206: 143 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of Pakistan @ eFloras.org
editor
S. I. Ali & M. Qaiser
project
eFloras.org
original
visit source
partner site
eFloras

Flower/Fruit

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Fl. Per.: July - November.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of Pakistan Vol. 206: 143 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of Pakistan @ eFloras.org
editor
S. I. Ali & M. Qaiser
project
eFloras.org
original
visit source
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eFloras

Flowering/Fruiting

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Fruiting summer.
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cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 23: 150, 151 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
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eFloras

Habitat

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Swales between dunes, marshes, pond shores; 0–200m.
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cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 23: 150, 151 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
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eFloras

Habitat

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Rice fields (common acc. to Cooke, 1908 and Stewart, 1972).
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of Pakistan Vol. 206: 143 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of Pakistan @ eFloras.org
editor
S. I. Ali & M. Qaiser
project
eFloras.org
original
visit source
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eFloras

Synonym

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Cyperus autumnalis Vahl; C. haspan subsp. juncoides (Lamarck) Kükenthal; C. haspan var. americanus Boeckeler; C. juncoides Lamarck
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cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 23: 150, 151 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
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eFloras

Cyperus haspan

provided by wikipedia EN

Cyperus haspan is a dwarf papyrus sedge in the Cyperaceae. It is widely distributed in tropical and subtropical regions in Africa, Madagascar, southern Asia (Iran, India, China, Philippines, Indonesia, etc.), New Guinea, Australia, South America, West Indies, Central America, southern Mexico and the southeastern United States (from Texas to Virginia).[2][3][4][5][6][7][8][9][10][11][12]

Description

The rhizomatous perennial grass-like sedge typically grows to a height of 0.2 to 0.6 metres (0.7 to 2.0 ft) and has a tufted habit. It blooms between Summer and Spring producing brown flowers.[13]

In Western Australia it is found in wet areas in the Kimberley region where it grows in gravelly sandy-clay alluvium.[13]

There are two recognised subspecies:

  • Cyperus haspan L. subsp. haspan
  • Cyperus haspan subsp. juncoides (Lam.) Kük.[14]

References

  1. ^ Gupta, A.K. & Lansdown, R.V. (2018). "Cyperus haspan". IUCN Red List of Threatened Species. 2018: e.T168969A1258665. doi:10.2305/IUCN.UK.2018-2.RLTS.T168969A1258665.en. Retrieved 24 March 2022.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  2. ^ Kew World Checklist of Selected Plant Families
  3. ^ Flora of China, Vol. 23 Page 227, 畦畔莎草 qi pan suo cao, Cyperus haspan Linnaeus, Sp. Pl. 1: 45. 1753.
  4. ^ Edwards, S., Demissew, S., & Hedberg, I. (eds.) (1997). Flora of Ethiopia and Eritrea 6: i-xxviii, 1-586. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
  5. ^ Cabezas, F., Aedo, C. & Velayos, M. (2004). Checklist of the Cyperaceae of Equatorial Guinea (Annobón, Bioko, Río Muni). Belgian Journal of Botany 137: 3-26.
  6. ^ Sita, P. & Moutsambote, J.-M. (2005). Catalogue des plantes vasculaires du Congo, ed. sept. 2005: 1-158. ORSTOM, Centre de Brazzaville.
  7. ^ Acevedo-Rodríguez, P. & Strong, M.T. (2005). Monocotyledons and Gymnosperms of Puerto Rico and the Virgin Islands. Contributions from the United States National Herbarium 52: 1-415.
  8. ^ Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
  9. ^ Catarino, L., Martins, E.S., Diniz, M.A. & Pinto-Basto, M.F. (2006). Check-list da flora vascular do parque natural das Lagos de Cufada (Guiné-Bissau). Garcia de Orta, Série de Botânica 17: 97-141.
  10. ^ Figueiredo, E., Paiva, J., Stévart, T., Oliveira, F. & Smith, G.F. (2011). Annotated catalogue of the flowering plants of São Tomé and Príncipe. Bothalia 41: 41-82.
  11. ^ Acevedo-Rodríguez, P. & Strong, M.T. (2012). Catalogue of seed plants of the West Indies. Smithsonian Contributions to Botany 98: 1-1192.
  12. ^ Flora of North America, Vol. 23 Page 151, Cyperus haspan Linnaeus, Sp. Pl. 1: 45. 1753.
  13. ^ a b "Cyperus haspan". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  14. ^ "Cyperus haspan juncoides". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
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Cyperus haspan: Brief Summary

provided by wikipedia EN

Cyperus haspan is a dwarf papyrus sedge in the Cyperaceae. It is widely distributed in tropical and subtropical regions in Africa, Madagascar, southern Asia (Iran, India, China, Philippines, Indonesia, etc.), New Guinea, Australia, South America, West Indies, Central America, southern Mexico and the southeastern United States (from Texas to Virginia).

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