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This species is accepted, and its native range is Egypt to Cameroon and Malawi, Arabian Peninsula.
A specimen from Kew's Herbarium

[FTEA]

Cyperaceae, K Hoenselaar, B. Verdcourt & H. Beentje. Hypolytrum, D Simpson. Fuirena, M Muasya. Flora of Tropical East Africa. 2010

Type
Type: Ethiopia, near Adua, Schimper 57 (P, holo.; K, iso.)
Morphology General Habit
Perennial, robust, up to 105 cm tall, with a woody rhizome covered in brown to blackish scales.
Morphology Culms
Culms 56–94 cm long, 2–4 mm wide, trigonous, sometimes almost rounded near the apex, slightly longitudinally ridged, smooth
Morphology Leaves
Leaves up to 30 cm long. Leaf sheath grey to reddish-brown, 10–21 cm long, fairly wide and loosely surrounding the culm. Leaf blade linear, flat, glabrous to slightly scabrid, 4–10 cm long, 1.5–3 mm wide, apex acute to acuminate, slightly scabrid
Morphology Reproductive morphology Inflorescences Bracts
Involucral bracts leaflike, spreading, 4–6, lowermost 19–30 cm long, 2–6 mm wide
Morphology Reproductive morphology Inflorescences
Inflorescence simple, primary branches 4–9, 2–9 cm long.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets in loose clusters at the end of primary branches, 6–14 per cluster, linear-lanceolate, 9.5–22 mm long, 1–2.5 mm wide.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes reddish-brown, sometimes pale, ovate-lanceolate, glabrous, 1.3–2.5 mm long, 0.6–1.6 mm wide, keel flat, apex rounded
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens (2–)3: filaments 1.3–2.4 mm long.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers 0.8–1.8 mm long
Morphology Reproductive morphology Fruits
Nutlet grey-brown, (narrowly) ellipsoid-obovoid, 0.9–1.6 mm long, 0.3–0.6 mm wide, smooth to slightly papillose in longitudinal rows
Ecology
On sandy or stony river banks, near or in water; 450–1600 m
Conservation
Least Concern (LC) due to its wide distribution and common habitat
Note
Easy to recognize with its wide leaf sheaths and short leaf blades.
Distribution
Flora districts: U1 K2 K4 T4 T7 Range: Cameroon, Congo-Kinshasa, Sudan, Ethiopia

Native to:

Cameroon, Chad, Egypt, Eritrea, Ethiopia, Kenya, Malawi, Saudi Arabia, Sudan, Tanzania, Uganda, Zaïre

Cyperus schimperianus Steud. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Feb 1, 1892 Schimper, G.H.W. [57], Ethiopia K000815765
Feb 1, 1892 Schimper, G.H.W. [57], Ethiopia K000815764
Dec 11, 1896 illegible [s.n.], Russian Federation Cyperus truncatus K000309409
Jul 1, 1892 s.coll. [s.n.], Japan Cyperus truncatus K000309402

First published in Syn. Pl. Glumac. 2: 34 (1854)

Accepted by

  • Boulos, L. (2005). Flora of Egypt 4: 1-617. Al Hadara Publishing, Cairo.
  • Browning, J. & al. (2020). Flora Zambesiaca 14: 1-455. Royal Botanic Gardens, Kew.
  • Brundu, G. & Camarda, I. (2013). The Flora of Chad: a checklist and brief analysis PhytoKeys 23: 1-18.
  • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.
  • Dobignard, D. & Chatelain, C. (2010). Index synonymique de la flore d'Afrique du nord 1: 1-455. Éditions des conservatoire et jardin botaniques, Genève.
  • 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.
  • Govaerts, R. & Simpson, D.A. (2007). World Checklist of Cyperaceae. Sedges: 1-765. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne.
  • Hoenselaar, K., Verdcourt, B. & Beentje, H. (2010). Cyperaceae Flora of Tropical East Africa: 1-466.

Literature

Kew Backbone Distributions

  • Boulos, L. (2005). Flora of Egypt 4: 1-617. Al Hadara Publishing, Cairo.
  • Browning, J. & al. (2020). Flora Zambesiaca 14: 1-455. Royal Botanic Gardens, Kew.
  • Brundu, G. & Camarda, I. (2013). The Flora of Chad: a checklist and brief analysis PhytoKeys 23: 1-18.
  • 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.

Flora of Tropical East Africa

  • E.P. 4, 20 (101): 84 (1936)
  • F.T.A. 8: 358 (1902)
  • Fl. Eth. 6: 447 (1997).
  • Haines & Lye, Sedges & Rushes E. Afr.: 184, fig. 355 (1983)
  • Syn. Pl. Glum. 2: 34 (1854)

Flora of Tropical East Africa
Flora of Tropical East Africa
http://creativecommons.org/licenses/by-nc-sa/3.0

Herbarium Catalogue Specimens
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0