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This species is accepted, and its native range is South Sudan to NW. Tanzania.

[FTEA]

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

Type
Type: Uganda, Karamoja District: 5 km N of Lothaa, Lye 5462 (MHU, holo.; C, EA, K, P, UPS, iso.)
Morphology General Habit
Perennial, slender, up to 61 cm tall, with a swollen culm-base covered by fleshy brown scales, the outer ones usually splitting up into blackish fibres.
Morphology Culms
Culms few, 12–60 cm long, 0.5–2 mm wide, trigonous, smooth
Morphology Leaves
Leaf sheath brown to greyish, turning darker when older, 2.4–6.5 cm long, slightly torn at base. Leaves up to 36.5 cm long. Leaf blade linear, flat or sometimes folded, 6–30 cm long, 1.2–4 mm wide, scabrid at least on margins and primary vein, apex acute to acuminate
Morphology Reproductive morphology Inflorescences Bracts
Involucral bracts leaf-like, spreading to reflexed, 2–3, lowermost 2.7–13 cm long, 1.3–2.2 mm wide
Morphology Reproductive morphology Inflorescences
Inflorescence capitate, globose, 9–16 mm long, 9–14 mm wide.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets in a dense head, many per head, lanceolate, 5.1–9 mm long, 0.7–1.7 mm wide, 2-flowered, perfecting 1(–2) nutlets.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes yellow, set far apart, oblong-elliptic to lanceolate, 3.8–6.2 mm long, 0.8–1.9 mm wide, keel with 9–20 parallel veins on either side, apex very obtuse
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 3.
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Filaments 4–6.1 mm long.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers 1.6–2.5 mm long
Morphology Reproductive morphology Fruits
Nutlet grey, narrowly oblong-ellipsoid, trigonous, 1.9–3 mm long, 0.5–0.8 mm wide, acuminate at apex, minutely papillose.
Ecology
Grassland, bushed grassland; 1100–2200 m
Conservation
Least concern (LC)
Note
This might be synonym for C. remotus from the Congo. The description for remotus is incomplete and I was unable to see the type specimen.
Distribution
Flora districts: U1 K2 K3 K5 K6 T1 Range: Not known elsewhere

Native to:

Kenya, Sudan, Tanzania, Uganda

Cyperus boreochrysocephalus Lye appears in other Kew resources:

First published in Nordic J. Bot. 3: 216 (1983)

Accepted by

  • 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.
  • 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

  • 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.

Flora of Tropical East Africa

  • Haines & Lye, Sedges & Rushes E. Afr.: 219, figs. 444, 445 (1983).
  • Nordic Journ. Bot. 3: 216 (1983)

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