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This species is accepted, and its native range is S. Ethiopia to Tanzania.
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: Tanzania: Kilimanjaro, Marangu, Volkens 649 (B, holo.; K!, iso.)
Morphology General Habit
Perennial, up to 125 cm tall, with slightly swollen stem base from a short woody nodular rhizome.
Morphology Culms
Culms few, 25–109 cm long, 1.4–4 mm wide, trigonous with longitudinal grooves, smooth
Morphology Leaves
Leaf blade linear, flat or plicate, 15–68 cm long, 5–12 mm wide, scabrid on margins and veins, apex acute to acuminate Leaves up to 84 cm long. Leaf sheath pale brown to greenish, often papery, 3–16 cm long.
Morphology Reproductive morphology Inflorescences Bracts
Involucral bracts leaf-like, spreading, 3–6, lowermost 10.5–58 cm long, 5–11 mm wide
Morphology Reproductive morphology Inflorescences
Inflorescence simple to compound, primary branches 5–8, 2–19 cm long.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets in loose clusters on elongated axis, at the end of primary and secondary branches, 14–25 per cluster, linear, 12–34 mm long, 1.1–2.4 mm wide.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes olive green to bluish grey, ovate, 2.1–3 mm long, 1.1–1.8 mm wide, keel indistinct, apex acute
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 3.
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Filaments 1.6–2.9 mm long.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers 0.8–1.1 mm long
Morphology Reproductive morphology Fruits
Nutlet brown, ellipsoid-oblong to obovoid, 1.4–1.8 mm long, 0.5–0.65 mm wide, papillose in longitudinal rows.
Ecology
Grassland, swampy grassland, weed of cultivations, roadsides; 800–2150 m
Conservation
Least Concern (LC) due to its wide distribution and common habitat.
Distribution
Flora districts: U3 U4 K1 K4 K6 K7 T2 T3 T6 T ?7 Range: Ethiopia

Native to:

Ethiopia, Kenya, Tanzania, Uganda

Cyperus maranguensis K.Schum. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Volkens, G. [649], Tanzania K000321423 Unknown type material

First published in H.G.A.Engler, Pflanzenw. Ost-Afrikas, C: 120 (1895)

Accepted by

  • 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

Flora of Tropical East Africa

  • E.P. 4, 20 (101): 128 (1936)
  • F.T.A. 8: 359 (1902)
  • Fl. Eth. 6: 448 (1997).
  • Haines & Lye, Sedges & Rushes E. Afr.: 194, figs. 381, 382 (1983)
  • P.O.A. C: 120 (1895)

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