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This species is accepted, and its native range is Cameroon to W. Tanzania and S. Tropical Africa.
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: Angola: District of Moxico, Ikula Hot Springs, Milne-Redhead 4213 (K!, holo.)
Morphology General Habit
Annual up to 42 cm high, with delicate rootsystem.
Morphology Culms
Culms tufted?, 23–38 cm long, 1.1 mm wide, triquetrous, smooth
Morphology Leaves
Leaf blade linear, plicate, 10–17 cm long, 1.2–1.6 mm wide, acuminate, apex scabrid Leaves up to 20 cm long. Leaf sheath pale brown, 2.2–3.5 cm long, sometimes ± purplish at base.
Morphology Reproductive morphology Inflorescences Bracts
Involucral bracts leaf-like, 2–3, the lowermost 8.5–16 cm long, 1.8–2 mm wide, scabrid
Morphology Reproductive morphology Inflorescences
Inflorescence simple, primary branches 1–2, 2–5.3 cm long.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets in loosely digitate clusters at the end of primary branches, at least one cluster sessile. Spikelets 3–5 per cluster, ovoid, 12.5–15 mm long, 4.5 mm wide, elongating in fruit/after fruiting up to 34 mm long, axis straight to curved after fruiting.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes yellow to golden brown, elliptic-ovate, somewhat spreading during fruiting, 3.5–4 mm long, 2.6–3 mm wide, keel acute, 2–3-veined, sometimes purplish, apex acuminate to mucronate, giving the spikelet a serrate appearance
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 3: filaments 2 mm long.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers 0.4 mm long
Morphology Reproductive morphology Flowers Gynoecium Stigma
Stigma 2-branched
Morphology Reproductive morphology Fruits
Nutlet greyish-black, obovoid to obcircular, biconvex, 1.5 mm long, 1.4 mm wide, ± wrinkled
Ecology
Swamp, rice fields; 950–1350 m
Conservation
Least concern due to distribution and habitat.
Distribution
Range: Congo-Kinshasa, Angola, Zambia Flora districts: T4

Native to:

Angola, Cameroon, Chad, Malawi, Tanzania, Zambia, Zaïre

Cyperus xantholepis (Nelmes) Lye appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Jan 1, 1967 Wilde-Duyfjes, B.E.E. [3223], Cameroon Pycreus dewildeorum K000363022 isotype
Mar 9, 2005 Richards, H.M. [25929], Tanzania Pycreus xantholepis K000480583
Mar 1, 2005 Hooper, S. [1998], Tanzania Pycreus xantholepis K000480582
Jan 1, 1976 Robinson, E.A. [4991], Zambia Pycreus xantholepis K000480588
Bidgood, S. [5931], Tanzania Pycreus xantholepis K000468494
Robinson, E.A. [2786], Zambia Pycreus xantholepis K000480587
Robinson, E.A. [3443], Zambia Pycreus xantholepis K000480590
Robinson, E.A. [571], Zambia Pycreus xantholepis K000480585
Germain, R. [6874], Congo, DRC Pycreus xantholepis K000480581
Milne - Redhead, E. [4213], Angola Pycreus xantholepis K000363071 Unknown type material
Robinson, E.A. [3705], Zambia Pycreus xantholepis K000480586
Robinson, E.A. [4989], Zambia Pycreus xantholepis K000480589

First published in Lidia 7: 97 (2011)

Accepted by

  • Govaerts, R., Nic Lughadha, E., Black, N., Turner, R. & Paton, A. (2021). The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. https://doi.org/10.1038/s41597-021-00997-6 Scientific Data 8: 215.

Literature

Kew Backbone Distributions

  • Browning, J. & al. (2020). Flora Zambesiaca 14: 1-455. Royal Botanic Gardens, Kew.
  • Brundu, G. & Camarda, I. (2013). The Flora of Chad: a checklist and brief analysis PhytoKeys 23: 1-18.
  • 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 K000363022
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