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This species is accepted, and its native range is 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: Ivory Coast: Man, Portères s.n. (P, syn.); Nigeria, Jeba near Niger, Barter s.n. (syn.); Central African Republic, upper Ubangi, Tisserant 121, 1559, 1978, 2224 (P, syn.); Sudan, Kulikoro, Chevalier, 2469 (P, syn.), Sudan, Djur Ghattas, Schweinfurt 2328 (K!, PRE!, syn.) & Bongo, Gir, Schweinfurt 5295 (syn.); Uganda, District unclear, Zumbua, Dummer 2811 (K, syn.); Angola, between Chibia and Quihita, Pearson 2638 (K, syn.).
Morphology General Habit
Annual, slender, with slightly purplish roots, up to 27 cm tall.
Morphology Culms
Culms 11–23.5 cm long, 0.8–1.3 mm wide, trigonous, smooth
Morphology Leaves
Leaf blade linear, flat, 7–26 cm long, 1.1–3 mm wide, with strong longitudinal ribs, glabrous, apex acute to acuminate Leaf sheath green to purplish with a wide transparent margin near the throat, 1–6 cm long. Leaves up to 30 cm long.
Morphology Reproductive morphology Inflorescences Bracts
Involucral bracts leaf-like, erect or spreading, 2–3, the lowermost 7.5–26.5 cm long, 1.6–2.7 mm wide
Morphology Reproductive morphology Inflorescences
Inflorescence simple, primary branches 3–8, 0.5–2(–5) cm long.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets in dense digitate clusters, sessile or at the end of primary branches, 7–20 per cluster, ovoid.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes whitishgreen, elliptic-ovate, 0.8–1.3 mm long, 0.3–0.6 mm wide, keel with 3 greenish-brown veins, apex acute Glumes spreading and showing nutlet when mature, 2.4–6.3 mm long, 1.1–2.4 mm wide.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 2
Morphology Reproductive morphology Fruits
Nutlet grey to brown, ellipsoid-obovoid, 0.9–1.3 mm long, 0.3–0.6 mm long, apiculate, smooth to sometimes minutely papillose.
Ecology
In seasonally wet habitats, shallow pools and depressions, and shallow soil on rocky outcrops; 1050–1100 m
Conservation
Least Concern (LC) due to its wide distribution
Note
Easy to recognize as its nutlet is larger then the glumes, and is showing when mature. Very close to C. difformis but differs slightly in size, leaf blade and culm width, and the keel is less winged than in difformis.
Distribution
Flora districts: U3 U4 Range: Senegal, Mali, Guinea, Ivory Coast, Ghana, Nigeria, Central African Republic, Congo-Kinshasa, Sudan, Angola, Zambia

[FWTA]

Cyperaceae, Miss S. S. Hooper. Flora of West Tropical Africa 3:2. 1972

Morphology General Habit
Tufted annual with purple roots
Diagnostic
Close to C. difformis Linn. but with narrower glumes and more flattened achene
Ecology
Edge of pools chiefly on laterite.

Native to:

Angola, Benin, Burkina, Central African Repu, Chad, Ghana, Guinea, Ivory Coast, Mali, Niger, Nigeria, Senegal, Sudan, Uganda, Zambia, Zaïre

Cyperus submicrolepis Kük. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Feb 1, 1965 Jaeger, P. [52], Mali K000391894
Schweinfurth, G. [2328], Sudan K000321360 Unknown type material

First published in H.G.A.Engler (ed.), Pflanzenr., IV, 20(101): 241 (1936)

Accepted by

  • Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
  • Boulvert, Y. (1977). Catalogue de la Flore de Centrafrique 2(2): 1-94. ORSTOM, Bangui.
  • Browning, J. & al. (2020). Flora Zambesiaca 14: 1-455. Royal Botanic Gardens, Kew.
  • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.
  • 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

Flora of West Tropical Africa

  • in Engl., Pflanzenr. Cyper. 241 (1936).

Kew Backbone Distributions

  • Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
  • Hoenselaar, K., Verdcourt, B. & Beentje, H. (2010). Cyperaceae Flora of Tropical East Africa: 1-466.

Flora of Tropical East Africa

  • E.P. 4, 20 (101): 241 (1936)
  • F.T.A. 8: 330 (1902)
  • Haines & Lye, Sedges & Rushes E. Afr.: 164, fig. 306 (1983).

Flora of Tropical East Africa
Flora of Tropical East Africa
http://creativecommons.org/licenses/by-nc-sa/3.0

Flora of West Tropical Africa
Flora of West Tropical 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