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

[FWTA]

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

Diagnostic
Characterized by the scales surrounding the swollen base of the stem, numerous, slender, basal leaves nearly equalling the stems, and the dark red-brown spikelets generally in a single spike
Ecology
Dune slacks and damp sandy places.

[FTEA]

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

Type
Type: Senegal, Herb. de Jussieu (C, lecto., P, iso.)
Morphology General Habit
Perennial up to 54 cm tall, with a basal bulb from whch the culm emerges, bulb to 10 mm in diameter.
Morphology Culms
Culms 19–44 cm long, 1.3–2.5 mm wide, trigonous, with longitudinal grooves, smooth
Morphology Leaves
Leaves many, up to 40 cm long. Leaf sheath greyishbrown to green, 2.5–8 cm long. Leaf blade linear, 11–31 cm long, 2.4–5.7 mm wide, slightly scabrid on the margins, apex acuminate
Morphology Reproductive morphology Inflorescences Bracts
Involucral bracts leaf-like, spreading, 3–6, lowermost 8–14 cm long, 2.4–4.4 mm wide
Morphology Reproductive morphology Inflorescences
Inflorescence a simple anthela, primary branches 3–5, 1–6 cm long.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets in loose clusters on elongated axis and at the end of primary branches, one to few clusters sessile, 5–17 per cluster, linear-lanceolate, 7–21 mm long, 1.3–2.1 mm wide.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes dark reddish-brown, ovate, 2.8–4.8 mm long, 1.3–1.8 mm wide, keel slightly paler, with lateral veins on either side, apex acute, slightly excurrent
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 3.
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Filaments 2.4–3.3 mm long.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers 1.7–2.2 mm long
Morphology Reproductive morphology Fruits
Nutlet (brownish-)grey, oblong-ellipsoid, 1.1–1.9 mm long, 0.6–0.8 mm wide, papillose in longitudinal rows.
Ecology
In seasonally wet grassland; 400–1600 m
Conservation
Least Concern (LC) as it is widespread throughout Africa.
Note
Two sheets from K 7 (Tana River Primate Reserve, Mar. 1990, Kabuye et al. TPR 669! and Kwale District: Shimoni, May 1999, Luke & Mbinda 5853!) are similar but the glumes are medium brown and the nutlet is almost smooth.
Distribution
Flora districts: K1 K4 K 6T2 T3 Range: Widespread from west to central Africa, Mozambique

[FSOM]

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

Morphology General Habit
Perennial with a basal bulb covered by brown to blackish scales and with very slender stolons ending in new 3–7 mm thick bulbs from which the stems emerge; stems 8–50 cm long, triangular
Morphology Leaves
Leaves many, 5–25 cm long and 2–6 mm wide
Morphology Reproductive morphology Inflorescences
Spikes 1.5–4 x 1.5–4 cm, consisting of 5–20 spreading spikelets Inflorescence a lax anthela 3–12 cm long and 5–12 cm wide, consisting of 4–6 leafy bracts, 1 sessile spike and 3–6 stalked spikes or reduced to 1 single spike
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets 5–25 x 1.5–3 mm, linear-lanceolate, dark reddish brown to yellowish green, 5–10-flowered
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes 3–4 mm long, ovate-lanceolate, dark reddish brown to almost blackish, with a paler slightly excurrent green midrib (even in the uppermost glumes the mucro is c. 0.2 mm long only) and prominent lateral nerves
Morphology Reproductive morphology Flowers Gynoecium Style
Style 3-branched
Morphology Reproductive morphology Fruits
Nutlet c. 0.8 x 0.5 mm, triangular, papillose.
Distribution
N1, 2; C2; S1–3 widespread in Africa, also Arabia to India and Malaysia, and N Australia.
Ecology
Near sea-level to 600 m.

Native to:

Algeria, Angola, Cape Verde, Chad, Cocos (Keeling) Is., Congo, Eritrea, Ethiopia, Ghana, Guinea, India, Iran, Jawa, Kenya, Lesser Sunda Is., Maldives, Mali, Mauritania, Morocco, Mozambique, New South Wales, Niger, Nigeria, Northern Territory, Oman, Pakistan, Queensland, Saudi Arabia, Senegal, Seychelles, Socotra, Somalia, South Australia, Sri Lanka, Sudan, Tanzania, Vietnam, Western Australia, Yemen

Cyperus bulbosus Vahl appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Jan 1, 1892 Giles [s.n.], Australia K000309458 syntype
Jan 1, 1892 F. Mueller [s.n.], Australia K000309457
s.coll. [8], India Cyperus geminatus K000592509 Unknown type material
Jan 1, 1892 Andrews [21], South Australia Cyperus subulatus var. confertus K000950369 holotype

First published in Enum. Pl. Obs. 2: 342 (1805)

Accepted by

  • Barry, J. P. & Celles, J.S. (1991). Flore de Mauritanie 2: 360-550. Centre Regional de Documentation Pedagogique, Nice.
  • Boudet, G., Lebrun, J.P. & Demange, R. (1986). Catalogue des plantes vasculaires du Mali: 1-465. Etudes d'Elevage et de Médecine Vétérinaire des Pays Tropicaux.
  • Boulos, L. (2005). Flora of Egypt 4: 1-617. Al Hadara Publishing, Cairo.
  • 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.
  • Dobignard, D. & Chatelain, C. (2010). Index synonymique de la flore d'Afrique du nord 1: 1-455. Éditions des conservatoire et jardin botaniques, Genève.
  • 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.
  • Hoenselaar, K., Verdcourt, B. & Beentje, H. (2010). Cyperaceae Flora of Tropical East Africa: 1-466.
  • Miller, A.G. & Morris, M. (2004). Ethnoflora of Soqotra Archipelago: 1-759. The Royal Botanic Garden, Edinburgh.
  • Mosti, S., Raffaelli, M. & Tardelli, M. (2012). Contributions to the flora of central-southern Dhofar (Sultanate of Oman) Webbia; Raccolta de Scritti Botanici 67: 65-91.
  • Sita, P. & Moutsambote, J.-M. (2005). Catalogue des plantes vasculaires du Congo, ed. sept. 2005: 1-158. ORSTOM, Centre de Brazzaville.

Literature

Flora of West Tropical Africa

  • Berhaut, Fl. Sén. ed. 2, 337 (1967).
  • Cherm. in Arch. Bot. Caen 7, Mém. 4: 12 (1936)
  • Enum. Pl. 2: 342 (1806)
  • F.T.A. 8: 352
  • Kük. in Engl., Pflanzenr. Cyper. 125 (1936)

Kew Backbone Distributions

  • Barry, J. P. & Celles, J.S. (1991). Flore de Mauritanie 2: 360-550. Centre Regional de Documentation Pedagogique, Nice.
  • Boudet, G., Lebrun, J.P. & Demange, R. (1986). Catalogue des plantes vasculaires du Mali: 1-465. Etudes d'Elevage et de Médecine Vétérinaire des Pays Tropicaux.
  • Dobignard, D. & Chatelain, C. (2010). Index synonymique de la flore d'Afrique du nord 1: 1-455. Éditions des conservatoire et jardin botaniques, Genève.
  • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
  • Fosberg, F.R. (1957). The Maldive islands, Indian Ocean Atoll Research Bulletin 58: 1-37.
  • George, A.S., Orchard, A.E. & Hewson, H.J. (eds.) (1993). Oceanic islands 2 Flora of Australia 50: 1-606. Australian Government Publishing Service, Canberra.
  • Miller, A.G. & Morris, M. (2004). Ethnoflora of Soqotra Archipelago: 1-759. The Royal Botanic Garden, Edinburgh.
  • Mosti, S., Raffaelli, M. & Tardelli, M. (2012). Contributions to the flora of central-southern Dhofar (Sultanate of Oman) Webbia; Raccolta de Scritti Botanici 67: 65-91.
  • Sita, P. & Moutsambote, J.-M. (2005). Catalogue des plantes vasculaires du Congo, ed. sept. 2005: 1-158. ORSTOM, Centre de Brazzaville.

Flora of Somalia

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

Flora of Tropical East Africa

  • E.P. 4, 20 (101): 125 (1936)
  • Enum. Pl. 2: 342 (1805)
  • F.T.A. 8: 352 (1902)
  • Fl. Eth. 6: 451 (1997).
  • Fl. Somalia 4: 124 (1995)
  • Haines & Lye, Sedges & Rushes E. Afr.: 193, fig. 379 (1983)

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