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This species is accepted, and its native range is South Sudan to E. Tropical Africa.

[FTEA]

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

Type
Type: Uganda, Mt Elgon, Granvik 323; Kenya, Mt Kenya, Coles Mill, Fries & Fries 1030 & 1037; Congo-Kinshasa, near Nyiragongo [Ninagongo], Mildbraed 1282 (syn., none traced)
Morphology General Habit
Perennial, up to 53 cm tall.
Morphology Culms
Culm base swollen, covered with fibrous remains of old leaf sheaths. Culms tufted, 5–50 cm long, 0.7–2.5 mm wide, trigonous, smooth
Morphology Leaves
Leaves up to 31 cm long. Leaf blade linear, flat or inrolled, 4.2–23 cm long, 0.9–2.4 mm wide, glabrous to slightly scabrid on margin, apex acute to acuminate Leaf sheath pale or reddish-brown, 3–8 cm long.
Morphology Reproductive morphology Inflorescences Bracts
Involucral bracts leaf-like, spreading to reflexed, 2–3, lowermost 1–14 cm long, 1.3–3 mm wide
Morphology Reproductive morphology Inflorescences
Inflorescence capitate, ovoid to rounded, 8–13 mm long, 9–13 mm wide.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets in dense spikes, ovoid, 2.9–5.1 mm long, 1.3–2 mm wide, rachis straight.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes dark purple (the lower) or creamy white (the middle and upper), ovate-elliptic, 2.4–4.7 mm long, 1.6–2 mm wide, keel not prominent, apex acute to acuminate
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 3.
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Filaments 3.1–4 mm long.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers 1.1–2.6 mm long
Morphology Reproductive morphology Fruits
Nutlet grey to (reddish-)brown, narrowly obovoid, trigonous, 2–2.7 mm long, 0.8–1.1 mm wide, minutely papillose.
Ecology
In (seasonally wet) grasslands, moorland, in rock crevices; 1550–4000 m
Conservation
Least Concern (LC)
Distribution
Flora districts: U3 K3 K4 K6 T2 T4 T7 Range: Congo-Kinshasa

Native to:

Kenya, Sudan, Tanzania, Uganda, Zaïre

Cyperus albosanguineus Kük. appears in other Kew resources:

First published in H.G.A.Engler (ed.), Pflanzenr., IV, 20(101): 555 (1936)

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.
  • Hoenselaar, K., Verdcourt, B. & Beentje, H. (2010). Cyperaceae Flora of Tropical East Africa: 1-466.

Flora of Tropical East Africa

  • E.P. 4, 20 (101): 555 (1936)
  • Haines & Lye, Sedges & Rushes E. Afr.: 215, fig. 434 (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