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This species is accepted, and its native range is S. Tanzania to E. Zimbabwe.
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: Tanzania, Songea District, R. Luhimba ± 28 km N of Songea, Milne-Redhead & Taylor 10106 (K, holo.; out on loan)
Morphology General Habit
Perennial, up to 40 cm tall, with short horizontal rhizomes.
Morphology Culms
Culms crowded on the rhizome, their bases bulbous, 18–40 cm long, 0.4–1 mm wide, terete except near apex where bluntly triangular, glabrous; basal parts covered by fibrous old leaf sheaths
Morphology Leaves
Leaf blade linear, flat or folded, 5–15 cm long, 1–2 mm wide, scabrid on margin and midrib Leaf sheath pale to dark brown, 1–6 cm long. Leaves up to 15 cm long.
Morphology Reproductive morphology Inflorescences Bracts
Involucral bracts leaf-like, spreading or reflexed, 3–4, lowermost 1–7 cm long
Morphology Reproductive morphology Inflorescences
Inflorescence a single whitish globose spike 6–12 mm across.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets many, narrowly obovoid, 4–4.8 mm long, 1–1.2 mm wide, 1–2-flowered.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes whitish, narrowly ovate to narrowly obovate, 3.5–4.5 mm long, unwinged, apex acuminate; ± 5-veined on each side of the midrib
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens ?2.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers 0.7 mm long
Morphology Reproductive morphology Fruits
Nutlet only seen immature, brown, flattened-ellipsoid, 1.3 mm long, 0.5 mm wide.
Ecology
Boggy grassland on sandy soil; 990 m
Conservation
Data deficient (DD), as information on possible threats is needed
Distribution
Flora districts: T8 Range: Not known elsewhere

Native to:

Tanzania, Zambia, Zimbabwe

Cyperus songeensis (Lye) Lye appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Jan 1, 1971 Milne-Redhead, E. [10106], Tanzania Kyllinga songeensis K000416323 holotype

First published in R.W.Haines & K.A.Lye, Sedges & Rushes E. Afr., App. 3: 2 (1983)

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

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