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This species is accepted, and its native range is Tropical Africa, Comoros.
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: Comoro Islands, Anjouan [Johanna], Hildebrandt 1740 (‘Herb. Rensch’, not found at B)
Morphology General Habit
Perennial, robust, up to 1 m tall, with thick woody rhizome, 1–1.5 cm in diameter.
Morphology Culms
Culms tufted, 70–83 cm long, 4–8 mm wide, trigonous to slightly triquetrous, smooth
Morphology Leaves
Leaves many, up to 140 cm long. Leaf sheath reddish-purple near the base, 3–13 cm long. Leaf blade linear, w-shaped, 68–130 cm long, 1–1.9 cm wide, scabrid on margins and major veins, apex acute
Morphology Reproductive morphology Inflorescences Bracts
Involucral bracts leaf- like, spreading, 7–9, lowermost 40–90 cm long, 1.1–3 cm wide
Morphology Reproductive morphology Inflorescences
Inflorescence compound, with primary, secondary and tertiary branching, primary branches few to many, 3.5–18 cm long.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets in small, crowded clusters, at the end of on secondary and tertiary branches, 3–9 per cluster, ovoid, 1.4–3.5 mm long, 0.8–1.9 mm wide.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes reddish-brown, ovate-lanceolate, 1.3–1.6 mm long, 0.8–1 mm wide, keel green, apex strongly mucronate, recurved
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 3.
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Filaments 1–1.1 mm long.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers 0.3–0.7 mm long
Morphology Reproductive morphology Fruits
Nutlet brown, ellipsoid, 0.7–1.1 mm long, 0.5–0.6 mm wide, glabrous to sometimes minutely papillose
Figures
Fig. 37, p248
Ecology
In forests, forest swamps, along forest streams, occasionally in grassland or roadside; (0–)150–2300 m
Conservation
Least Concern (LC) due to its wide distribution and common habitat.
Note
Similar to C. laxus but much bigger, with smaller spikelets. Plants found in open vegetation have narrower leaves.
Distribution
Flora districts: U2 U3 U4 K6 K7 T1 T2 T3 T4 T6 T7 P Range: Widespread in west and central Africa, down into Angola; Comoro Is.

[FWTA]

Cyperaceae, Miss S. S. Hooper. Flora of West Tropical Africa 3:2. 1972

Morphology General Habit
Robust perennial
Morphology Reproductive morphology Inflorescences
A much-branched, lax inflorescence broad bracts and very numerous small, round clusters of few-flowered dark spikelets recurved tips to the glumes
Ecology
Secondary or gallery forest, by streams.

Native to:

Angola, Benin, Cameroon, Central African Repu, Comoros, Congo, Equatorial Guinea, Gabon, Ghana, Guinea, Gulf of Guinea Is., Ivory Coast, Kenya, Liberia, Malawi, Nigeria, Rwanda, Sierra Leone, Sudan, Tanzania, Uganda, Zambia, Zaïre, Zimbabwe

Cyperus renschii Boeckeler appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Holst, C. [2257], Tanzania Cyperus renschii var. scabridus K000321430 Unknown type material

First published in Flora 65: 11 (1882)

Accepted by

  • Browning, J. & al. (2020). Flora Zambesiaca 14: 1-455. Royal Botanic Gardens, Kew.
  • 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.
  • 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.
  • Fischer, E., Rembold, K., Althof, A. & Obholzer, J. (2010). Annotated checklist of the vascular plants of Kakamega forest, Western province, Kenya Journal of East African Natural History 99: 129-226.
  • 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.
  • Lejoy, J., Ndjele, M.-B. & Geerinck, D. (2010). Catalogue-flore des plantes vasculaires des districts de Kisangani et de la Tshopo (RD Congo) Taxonomania. Revue de Taxonomie et de Nomenclature Botaniques 30: 1-307.
  • Lye, K.A. & Thery, P. (2012). Flore du Gabon 44: 1-230. Muséum National D'Histoire Naturelle, Paris.
  • Sita, P. & Moutsambote, J.-M. (2005). Catalogue des plantes vasculaires du Congo, ed. sept. 2005: 1-158. ORSTOM, Centre de Brazzaville.
  • Sosef, M.S.M. & al. (2006). Check-list des plantes vasculaires du Gabon Scripta Botanica Belgica 35: 1-438.
  • Velayos, M., Aedo, C., Cabezas, F., de la Estrella, M., Barberá, P. & Fero, M. (eds.) (2014). Flora de Guinea Ecuatorial 11: 1-416. Consejo superior de investigaciones científicas, Real jardín botánico, Madrid.

Literature

Flora of West Tropical Africa

  • F.T.A. 8: 345
  • Kük. in Engl., Pflanzenr. Cyper. 206. (1936)
  • in Flora 65: 11 (1882)

Kew Backbone Distributions

  • Browning, J. & al. (2020). Flora Zambesiaca 14: 1-455. Royal Botanic Gardens, Kew.
  • 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.
  • 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.
  • Fischer, E., Rembold, K., Althof, A. & Obholzer, J. (2010). Annotated checklist of the vascular plants of Kakamega forest, Western province, Kenya Journal of East African Natural History 99: 129-226.
  • Sita, P. & Moutsambote, J.-M. (2005). Catalogue des plantes vasculaires du Congo, ed. sept. 2005: 1-158. ORSTOM, Centre de Brazzaville.
  • Sosef, M.S.M. & al. (2006). Check-list des plantes vasculaires du Gabon Scripta Botanica Belgica 35: 1-438.

Flora of Tropical East Africa

  • E.P. 4, 20 (101): 206 (1936)
  • F.T.A. 8: 345 (1902)
  • Flora 65: 11 (1882)
  • Haines & Lye, Sedges & Rushes E. Afr.: 161, figs. 300, 301 (1983).

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

Flora of West Tropical Africa
Flora of West Tropical 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