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This species is accepted, and its native range is Kenya (Machakos District).
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: Kenya, Machakos District: 65 km from Nairobi on Mombasa road, Lye 6300 (MHU, holo.; K!, iso.)
Morphology General Habit
Perennial up to 140 cm tall, fairly robust, with a 3–8 mm thick erect woody rhizome.
Morphology Culms
Culms 90–120 cm long, 3–7 mm wide, trigonous, almost smooth, yellow at least in lower half
Morphology Leaves
Leaf sheath green and yellow with a wide transparent margin, the base dark purplish, 3–12 cm long. Leaves many at base, up to 70 cm long. Leaf blade linear, flat, 40–60 cm long, 6–10 mm wide, scabrid on margins and major veins, apex acuminate
Morphology Reproductive morphology Inflorescences Bracts
Involucral bracts leaf-like, erect to spreading, 5–6, lowermost up to 50 cm long, up to 9 mm wide
Morphology Reproductive morphology Inflorescences
Inflorescence a compound anthela, primary branches 7–8, up to 13 cm long.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets in loose clusters on an elongate branch, sessile and at the end of primary and secondary branches, 6–30 per cluster, linear-lanceolate, 20–35 mm long, 1.8–2.5 mm wide, rachis straight.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes reddish-brown with a narrow transparent margin, obovate, 2.6–3.3 mm long, 1.8–2 mm wide, keel green, excurrent, apex excurrent
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 3.
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Filaments 2.6–3.2 mm long.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers 1.1–1.5 mm long
Morphology Reproductive morphology Fruits
Nutlet immature.
Ecology
Edge of seasonal pool; 1650 m
Conservation
Needs information on current status of pupulation.
Note
Haines & Lye state this is related to C. exaltatus but differs in yellow culm, larger spikelets & glumes, and more reddish brown colour of the glumes.
Distribution
Flora districts: K4 Flora districts: Known from the type only

Native to:

Kenya

Cyperus flavoculmis Lye appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Feb 1, 2009 Lye, K.A. [6300], Kenya K000743733 isotype

First published in Nordic J. Bot. 3: 223 (1983)

Accepted by

  • 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

  • Haines & Lye, Sedges & Rushes E. Afr.: 179, fig. 343 (1983).
  • Nordic Journ. Bot. 3: 223 (1983)

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