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This species is accepted, and its native range is S. Tanzania to S. Tropical Africa.

[FTEA]

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

Type
Type: Zambia, Msombo at N side of Lake Bangweulu, Fries 1052 (B, holo.)
Morphology General Habit
Stoloniferous perennial, up to 67 cm high.
Morphology Culms
Culms densely tufted, 57 cm long, 2.5 mm wide, trigonous to rounded, smooth
Morphology Leaves
Leaf blade linear, canaliculate, ± tough and succulent, 24–25 cm long, 4–5 mm wide, acute, apex ± scabrid Leaves up to 30 cm long. Leaf sheath brown to brownish-black, 6 cm long.
Morphology Reproductive morphology Inflorescences Bracts
Involucral bracts 3. Leaf-like, spreading, folded, 11–31 cm long, 3–5 mm wide
Morphology Reproductive morphology Inflorescences
Inflorescence compound, primary branches 6–8, 4–9.5 cm long, with a basal tubular prophyll.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets 9–16 per cluster, narrowly linear-ellipsoid, 6.8–10 mm long, 1.4–1.5 mm wide, axis straight to ± curved, more curved when the glumes are shed. Spikelets on elongated axis on secondary branches.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes (pale reddish-)brown, elliptic-ovate, 2.6–2.8 mm long, 1.2–1.4 mm wide, keel acute, 2–3-veined, apex long-acuminate
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 3.
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Filaments 1.7–2.2 mm long.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers 0.9–1.1 mm long
Morphology Reproductive morphology Flowers Gynoecium Stigma
Stigma 2-branched
Morphology Reproductive morphology Fruits
Nutlet metallic grey, narrowly ellipsoid-oblong, 1–1.1 mm long, 0.3–0.4 mm wide, minute papillae in longitudinal rows.
Ecology
Boggy grassland at edge of small peaty stream; 450 m
Conservation
Data Deficient (DD); known from one collection in our area, and two collections outside, this is considered data deficient because there is still a lot of confusion in the species delimitation.
Distribution
Flora districts: T8 Range: Zambia, Malawi

Native to:

Angola, Malawi, Tanzania, Zambia, Zimbabwe

Cyperus laxespicatus Kük. appears in other Kew resources:

First published in R.E.Fries, Wiss. Erg. Schwed. Rhodesia-Kongo-Exp. 1911-1912, Erg.: 3 (1921)

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.
  • 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

  • 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