Skip to main content
This species is accepted, and its native range is SW. Syria to Africa, Pakistan to Vietnam.
Cyperus dives

[FWTA]

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

Diagnostic
Distinguished from C. exaltatus Retz. by the shorter, congested spikelets and from C. alopecuroides by the keeled glumes and three-sided achene
Ecology
Marshes.

[FSOM]

M. Thulin et al. Flora of Somalia, Vol. 1-4 [updated 2008] https://plants.jstor.org/collection/FLOS

Morphology Reproductive morphology Flowers Gynoecium Style
Style 3-branched
Morphology Reproductive morphology Fruits
Nutlet 0.6–0.8 x 0.4–0.5 mm, triangular, elliptic, greyish and almost smooth.
Distribution
S2 widespread in Africa (including Macaronesia and Madagascar) and India.
Ecology
Altitude below 100 m.
Morphology General Habit
Robust perennial with a few stems from a short woody rhizome; roots often reddish
Morphology Stem
Stems 50–150 cm long and 5–15 mm thick, triangular, smooth, the basal part covered by rather thick leaf-sheaths
Morphology Leaves
Basal leaves many, up to 80 cm long and 1.5–3.5 cm wide, flat, scabrid at least on margin and major ribs; leaf sheaths purple at least below
Morphology Reproductive morphology Inflorescences
Spikes 1–3 x 0.6–1.5 cm, with 30–120 spreading and very crowded spikelets Inflorescence a 10–30 cm long and 15–30 cm wide open anthela consisting of a few sessile or shortly stalked spikes and 5–15 clusters of spikes on 2–20 cm long inflorescence-branches (rays); primary involucral bracts leafy, the largest 20–80 cm long and 1.5–2.5 cm wide, erect or spreading
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets 3–5 (rarely to 10) mm long and 1–1.5 mm wide, linear-lanceolate, flattened, brown or golden, 6–20-flowered
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes 1.2–1.8 mm long, ovate, golden with darker reddish brown margin and an excurrent green midrib; lateral nerves indistinct
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 3

[FTEA]

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

Type
Type: Egypt (ubi?)
Morphology Culms
Culms 5–15 mm wide.
Morphology Leaves
Leaf blade 13–35 mm wide
Morphology Reproductive morphology Inflorescences Bracts
Involucral bracts 14–28 mm wide.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets 3.4–7 mm long
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes 1.2–1.7 mm long
Ecology
In swamps, on river-banks and in open water; sea-level up to 2450 m
Conservation
Least Concern (LC) due to its wide distribution
Note
" C. dives has been kept separate based on more many and more crowded spikelets and slightly shorter glumes (1.2–1.7 mm instead of 1.8–2.9 mm). These are gradual rather than qualitative characters, and I (HB) have decided to re-instate varietal status for dives. The taxa occur in the same area and in the same type of habitat. Also close to C. alopecuroides, which differs in glumes with rounded keel and flattened nutlets.
Distribution
Flora districts: U2 U3 U4 K1 K3 K4 K6 K7 T1 T2 T3 T7 Z Range: Senegal, Ivory Coast, Nigeria, Congo-Kinshasa, Rwanda, Burundi, Sudan, Eritrea, Ethiopia, Somalia, Zambia, Malawi, Mozambique, Botswana; Egypt

Native to:

Angola, Assam, Bangladesh, Botswana, Burkina, Burundi, Cape Verde, Chad, Congo, Egypt, Eritrea, Ethiopia, Gabon, India, Ivory Coast, Kenya, Lebanon-Syria, Madagascar, Malawi, Mozambique, Niger, Pakistan, Palestine, Rwanda, Senegal, Somalia, Sudan, Tanzania, Uganda, Vietnam, Zambia, Zaïre, Zimbabwe

Introduced into:

Italy, Spain

Cyperus dives Delile appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Bidgood, S. [6258], Tanzania K000468167
Crow, J. [173], India Cyperus exaltatus var. dives K000592526
Petherick [s.n.], Sudan Cyperus immensus K000321342 Unknown type material
Petherick [s.n.], Sudan Cyperus immensus K000321341 Unknown type material
Pervillé, M. [483], Madagascar Cyperus immensus K000362699 Unknown type material

First published in Descr. Egypte, Hist. Nat. 2(Mém.): 149 (1813)

Accepted by

  • Brundu, G. & Camarda, I. (2013). The Flora of Chad: a checklist and brief analysis PhytoKeys 23: 1-18.
  • 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.
  • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
  • 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.
  • Lejoy, J., Ndjele, M.-B. & Geerinck, D. (2010). Catalogue-flore des plantes vasculaires des districts de Kisangani et de la Tshopo (RD Congo) Taxonomania. Revue de Taxonomie et de Nomenclature Botaniques 30: 1-307.
  • Mostaph, M.K. & Uddin, S.B. (2013). Dictionary of plant names of Bangladesh, Vasc. Pl.: 1-434. Janokalyan Prokashani, Chittagong, Bangladesh.
  • Sita, P. & Moutsambote, J.-M. (2005). Catalogue des plantes vasculaires du Congo, ed. sept. 2005: 1-158. ORSTOM, Centre de Brazzaville.
  • Sosef, M.S.M. & al. (2006). Check-list des plantes vasculaires du Gabon Scripta Botanica Belgica 35: 1-438.
  • Thiombiano, A., Schmidt, M., Dressler, S., Ouédraogo, A., Hahn, K. & Zizka, G. (2012). Catalogue des plantes vasculaires du Burkina Faso Boissiera 65: 1-391.
  • Verloove, F. & Soldano, A. (2011). Studies in Italian Cyperaceae. 2. Miscellaneous notes Webbia; Raccolta de Scritti Botanici 66: 60-75.

Not accepted by

  • Boulos, L. (2005). Flora of Egypt 4: 1-617. Al Hadara Publishing, Cairo. [Cited as Cyperus alopecuroides.]
  • 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. [Cited as Cyperus exaltatus var. dives.]
  • Hoenselaar, K., Verdcourt, B. & Beentje, H. (2010). Cyperaceae Flora of Tropical East Africa: 1-466. [Cited as Cyperus exaltatus var. dives.]
  • Verloove, F. (2014). A conspectus of Cyperus s.l. (Cyperaceae) in Europe (incl. Azores, Madeira and Canary islands), with emphasis on non-native naturalised species Webbia; Raccolta de Scritti Botanici 69: 179-223. [Cited as Cyperus exaltatus.]

Literature

Flora of West Tropical Africa

  • Berhaut, Fl. Sén. ed. 2, 382 (1967).
  • Cherm. in Arch. Bot. Caen 7, Mém. 4: 17 (1936)
  • Descr. Egypte Hist. Sat. 2: 5, t. 4 fig. 3 (1813)
  • Kük. in Engl., Pflanzenr. Cyper. 68 (1936)

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.
  • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
  • Mostaph, M.K. & Uddin, S.B. (2013). Dictionary of plant names of Bangladesh, Vasc. Pl.: 1-434. Janokalyan Prokashani, Chittagong, Bangladesh.
  • Sita, P. & Moutsambote, J.-M. (2005). Catalogue des plantes vasculaires du Congo, ed. sept. 2005: 1-158. ORSTOM, Centre de Brazzaville.
  • Sosef, M.S.M. & al. (2006). Check-list des plantes vasculaires du Gabon Scripta Botanica Belgica 35: 1-438.
  • Thiombiano, A., Schmidt, M., Dressler, S., Ouédraogo, A., Hahn, K. & Zizka, G. (2012). Catalogue des plantes vasculaires du Burkina Faso Boissiera 65: 1-391.
  • Verloove, F. & Soldano, A. (2011). Studies in Italian Cyperaceae. 2. Miscellaneous notes Webbia; Raccolta de Scritti Botanici 66: 60-75.
  • Verloove, F. (2014). A conspectus of Cyperus s.l. (Cyperaceae) in Europe (incl. Azores, Madeira and Canary islands), with emphasis on non-native naturalised species Webbia; Raccolta de Scritti Botanici 69: 179-223.

Flora of Somalia

  • Flora Somalia, Vol 4, (1995) Author: by K. A. Lye [updated by M. Thulin 2008]

Flora of Somalia
Flora of Somalia
http://creativecommons.org/licenses/by-nc-sa/3.0

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

Kew Science Photographs
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/