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This species is accepted, and its native range is Tropical Africa.
A specimen from Kew's Herbarium

[FWTA]

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

Morphology General Habit
Tufted annual 30–100 cm. high
Morphology Reproductive morphology Inflorescences
Few, rather unequal rays bearing clusters of oblong, often dark-spotted, spikelets of broadly ovate, obtuse glumes
Ecology
Marshes and near open water.

[FTEA]

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

Type
Type: Guinea, Thonning s.n. (C, holo.)
Morphology General Habit
Annual, slender to robust, up to 80 cm tall.
Morphology Culms
Culms 22–68 cm long, 0.7–2.1 mm wide, trigonous, glabrous
Morphology Leaves
Leaf blade linear, flat to canaliculate, glabrous, 13–37 cm long, 1.7–4 mm wide, apex acuminate, glabrous Leaf sheath brown-grey to purplish red, 2–10 cm long. Leaves up to 45 cm long.
Morphology Reproductive morphology Inflorescences Bracts
Involucral bracts 2–5. Leaf-like, erect to spreading, the lowermost 13–44 cm long, 1.2–3.5 mm wide
Morphology Reproductive morphology Inflorescences
Inflorescence simple, sometimes capitate; when simple primary branches 2–7, 1.8–20 cm long.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets in digitate clusters, sessile and at the end of primary branches, 3–21 per cluster, linearlanceolate to elliptic, slightly compressed, 7–12 mm long, elongating to 25 mm long in fruit, 2–5 mm wide.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes greyish green to pale brown, usually with a dark red to purple spot on the margin, giving the spikelet a red to purple band across the centre, ovate, 2.7–3.2 mm long, 2.5–3 mm wide, with prominent lateral veins on either site of the keel, keel rounded, apex rounded
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 2.
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Filaments 1.9–2.5 mm long.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers 0.6–0.8 mm long
Morphology Reproductive morphology Flowers Gynoecium Style
Style with 2 stigma branches
Morphology Reproductive morphology Fruits
Nutlet brown to greyishblack, sometimes glaucous, dorso-ventrally compressed, or more rarely trigonous, ellipsoid to rounded to obovoid, 1.4–2 mm long, 1–1.7 mm wide, minutely papilose with many small isodiametric cells
Ecology
In grassy swamps, on muddy bed of stream, edge of pools, often on thin soil over rock; (90–)1100–1400 m
Conservation
Least Concern (LC) due to its wide distribution
Distribution
Flora districts: U3 T4 Z Range: Widespread in West and central Africa, Zambia

Native to:

Angola, Benin, Burkina, Cameroon, Central African Repu, Chad, Ethiopia, Gabon, Gambia, Ghana, Guinea, Guinea-Bissau, Ivory Coast, Liberia, Mali, Mozambique, Nigeria, Rwanda, Senegal, Sudan, Tanzania, Togo, Uganda, Zambia, Zaïre

Cyperus pustulatus Vahl appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Jan 1, 1966 Barter [1563], Nigeria K000321315 Unknown type material
Bidgood, S. [5466], Tanzania K000190696
Bidgood, S. [5871], Tanzania K000468554

First published in Enum. Pl. Obs. 2: 341 (1805)

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.
  • Edwards, S., Demissew, S., & Hedberg, I. (eds.) (1997). Flora of Ethiopia and Eritrea 6: i-xxviii, 1-586. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
  • 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.
  • Jongkind, C. (2014). Fauna & Flora of Liberia, flowering plant species list www.liberianfaunaflora.org.
  • Lye, K.A. & Thery, P. (2012). Flore du Gabon 44: 1-230. Muséum National D'Histoire Naturelle, Paris.
  • Sosef, M.S.M. & al. (2006). Check-list des plantes vasculaires du Gabon Scripta Botanica Belgica 35: 1-438.

Literature

Flora of West Tropical Africa

  • Enum. Pl. 2: 341 (1806)
  • Kük. in Engl., Pflanzenr. Cyper. 161 (incl. var. djalanis (Chev.) Kük.). (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.
  • 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.
  • Hoenselaar, K., Verdcourt, B. & Beentje, H. (2010). Cyperaceae Flora of Tropical East Africa: 1-466.
  • Jongkind, C. (2014). Fauna & Flora of Liberia, flowering plant species list www.liberianfaunaflora.org.
  • Sosef, M.S.M. & al. (2006). Check-list des plantes vasculaires du Gabon Scripta Botanica Belgica 35: 1-438.

Flora of Tropical East Africa

  • E.P. 4, 20 (101): 161 (1936)
  • Enum. Pl. 2: 341 (1805)
  • Fl. Eth. 6: 460 (1997).
  • Haines & Lye, Sedges & Rushes E. Afr.: 265, figs. 540, 541 (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