Skip to main content
This species is accepted, and its native range is SW. Cameroon to Gabon, Uganda to Malawi, W. Indian Ocean.
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: Madagascar, Nosy Be [Nossi-Bé], Pervillé 516 (P!, iso.)
Morphology General Habit
Perennial, robust, with a swollen stem base and a short creeping rhizome, up to 100 cm tall.
Morphology Culms
Culms few, 30–80 cm long, 1.6–4.4 mm wide, trigonous, glabrous
Morphology Leaves
Leaf blade linear, flat, 21–49 cm long, 2.5–7.3 mm wide, scabrid on margin and primary vein, apex acute to acuminate Leaves with leaf sheath greenish or pale purple above, dark purple below, 3.5–11 cm long.
Morphology Reproductive morphology Inflorescences Bracts
Involucral bracts leaf-like, erect to spreading, 5–9, lowermost 13–46 cm long, 3.7–7 mm wide
Morphology Reproductive morphology Inflorescences
Inflorescence a simple anthela, primary branches 4–8, 6–15 cm long. Inflorescence sometimes more congested and capitatelike, then primary branches up to 1 cm long.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets in loose clusters, sessile and at the end of primary branches, 15 to many per cluster, linear-lanceolate, 11–17 mm long, 1–1.4 mm wide. Spikelet falling off entirely when mature.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes green with or without a golden or reddish-brown tinge, lanceolate-elliptic, 4.4–6 mm long, 1.3–1.5 mm wide, keel with several veins on either side, apex acute to acuminate
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 3.
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Filaments 4.5–5.6 mm long.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers 1–2.9 mm long
Morphology Reproductive morphology Fruits
Nutlet grey to brown, linear-ellipsoid, trigonous, 2.5–3.7 mm long, 0.6–0.9 mm wide, rather smooth to minutely papillose.
Ecology
In wet pastures and grassland, secondary forest, often found as a weed in cultivation; sealevel up to 2200 m
Conservation
Least Concern (LC) due to common habitat and wide distribution
Distribution
Range: Cameroon, Congo-Kinshasa, Rwanda, Malawi; Madagascar Flora districts: U2 K4 K7 T1 T3 T4 T6 T7 T8

Native to:

Cameroon, Comoros, Gabon, Kenya, Madagascar, Malawi, Mauritius, Rwanda, Réunion, Tanzania, Uganda, Zaïre

Cyperus luteus Boeckeler appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Whyte, A. [s.n.], Malawi K000362631 syntype
Whyte, A [s.n.], Malawi K000362655 syntype
Pervillé, M. [516], Madagascar K000362762 isotype

First published in Linnaea 38: 370 (1874)

Accepted by

  • Browning, J. & al. (2020). Flora Zambesiaca 14: 1-455. Royal Botanic Gardens, Kew.
  • 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.
  • Lye, K.A. & Thery, P. (2012). Flore du Gabon 44: 1-230. Muséum National D'Histoire Naturelle, Paris.
  • Marais, W. & Araujo, A.C. (2018). Flore des Mascareignes 202: 1-99. IRD Éditions, MSIRI, RBG-Kew, Paris.

Literature

Kew Backbone Distributions

  • Lye, K.A. & Thery, P. (2012). Flore du Gabon 44: 1-230. Muséum National D'Histoire Naturelle, Paris.
  • Marais, W. & Araujo, A.C. (2018). Flore des Mascareignes 202: 1-99. IRD Éditions, MSIRI, RBG-Kew, Paris.

Flora of Tropical East Africa

  • E.P. 4, 20 (101): 414 (1936)
  • Haines & Lye, Sedges & Rushes E. Afr.: 203, figs. 406, 407 (1983).
  • Linnaea 38: 370 (1874)

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