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

Note
Rather similar to K. brevifolia, but different in culm base and even more slender habit.
Type
Type: Tanzania, Dodoma District: Ugogo, Kitalalo Steppe, Peter 33267a (B!, K!, syn.) & 33327 (B!, syn.)
Morphology General Habit
Perennial, small, up to 20 cm tall, with a bulbous culm-base and probably a creeping rhizome or stolon.
Morphology Culms
Culms tufted, 2–18 cm long, 0.4–0.6 mm wide, triangular, glabrous
Morphology Leaves
Leaf blade linear, flat or folded, 4–12 cm long, 0.8–1 mm wide, scabridulous on margins near apex Leaf sheath brownish, 0.8–1.5 cm long. Leaves up to 12 cm long.
Morphology Reproductive morphology Inflorescences Bracts
Involucral bracts 1–3. Leaf-like, the lowermost longest and ± erect, the others (if present) spreading or reflexed, lowermost (1.3–)1.8–6 cm long
Morphology Reproductive morphology Inflorescences
Inflorescence capitate, a single ± globose spike, 4.5–7 mm across.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets ovoid, 2–2.6 mm long, 0.9–1.1 mm wide, producing 2–3 nutlets.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes golden with green keel, ovoid, 2–2.6 mm long, apex mucronate and slightly recurved
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 3.
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Filaments to 3 mm long.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers 1–1.2 mm long
Morphology Reproductive morphology Fruits
Nutlet pale brown (immature?), ellipsoid and flattened, ± 1 mm long, 0.4 mm wide, minutely papillose.
Ecology
In boggy soil or wet sandy hollows on lake shores, or on thin soil over rock; 750–1550 m
Conservation
Only known from the four cited specimens; data deficient (DD), as no data are known about threats
Distribution
Flora districts: T2 T5 T7 Range: Not known elsewhere

Native to:

Malawi, Tanzania, Zambia

Cyperus ugogensis Peter & Kük. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Peter, A. [33267a], Tanzania Kyllinga ugogensis K000416304 syntype

First published in H.G.A.Engler (ed.), Pflanzenr., IV, 20(101): 572 (1936)

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 Kyllinga ugogensis.]
  • Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne. [Cited as Kyllinga ugogensis.]

Literature

Kew Backbone Distributions

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

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