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This species is accepted, and its native range is Tanzania to Angola.

[FTEA]

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

Type
Type: Angola, Huilla near Monina and Mupanda streams, Welwitsch 6788 (BM!, holo.)
Morphology General Habit
Stout rhizomatous perennial 0.6–1.2 m tall with persistent bulb-like swellings at base of old culms, with creeping, scale-covered stolons.
Morphology Culms
Culms obtusely angled near base but trigonous above, 61–120 cm long, 1.6–2 mm wide, glabrous, fistular, closely striate
Morphology Leaves Leaf sheaths
Sheaths brownish straw-coloured, 13–24 cm long, ultimately breaking into fibres.
Morphology Leaves
Leaf blade linear, flat, 33–51 cm long, 3.3–5.1 mm wide, rather stiff, acuminate, minutely papillose Leaves few, rigid, shorter than the stems.
Morphology Reproductive morphology Inflorescences Bracts
Involucral bracts leaflike, reflexed, 2–3, lowermost 15–30 cm long, 2.3–3 mm wide
Morphology Reproductive morphology Inflorescences
Inflorescence capitate, whitish, globose, 2–2.5 cm in diameter, densely compact, made up of many linearlanceolate acuminate spikelets 8.7–12.3 mm long.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes (5–)7–8, whitish, accrescent from the base, lower 6–7 empty, largest glume 6.4–9.1 mm long, 1.6–1.9 mm wide, subacute to acuminate, several-veined
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 3.
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Filaments 8–10.3 mm long.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers 3.1–4.2 mm long
Morphology Reproductive morphology Fruits
Nutlet straw-coloured, narrowly oblong, trigonous, 3.8–4.3 mm long, 0.8–1.3 mm wide, minutely punctulate
Figures
Fig. 39, p262
Ecology
Brachystegia and Brachystegia-Uapaca woodland on stony or red loam soil; 1200–2000 m
Conservation
Least Concern (LC) due to its distribution and habitat.
Note
This species differs from from all Cyperus species by only having one fertile flower per spikelet and has small glumes at the base of the spikelet, which increase in size towards the apex.
Distribution
Range: Congo-Kinshasa, Angola, Zambia Flora districts: T4 T5 T7 T8

Native to:

Angola, Tanzania, Zambia, Zaïre

Cyperus erinaceus (Ridl.) Kük. appears in other Kew resources:

First published in Boissiera 7: 103 (1943)

Accepted by

  • Browning, J. & al. (2020). Flora Zambesiaca 14: 1-455. Royal Botanic Gardens, Kew.

Not 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. [Cited as Sphaerocyperus erinaceus.]
  • Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne. [Cited as Sphaerocyperus erinaceus.]

Literature

Kew Backbone Distributions

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

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