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This species is accepted, and its native range is Tanzania (Uzaramo District).

[FTEA]

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

Type
Type: Tanzania, Uzaramo District: near Ruvu R., Milne-Redhead & Taylor 7441 (K, holo.; not found)
Morphology General Habit
Perennial, robust, with an ± 3 cm thick swollen base containing many up to 7 cm long brown tough leaf sheaths from previous years growth, the outer splitting into fibres.
Morphology Culms
Culms solitary, 70–80 cm long, 2–4 mm wide, trigonous, glabrous
Morphology Leaves
Leaves with sheath pale reddish brown to straw-coloured, to 7 cm; blade linear, flat, 20–30 cm long, 6–9 mm wide, densely scabrid at least on margin and primary vein above
Morphology Reproductive morphology Inflorescences Bracts
Involucral bracts leaf-like, spreading to reflexed, ± 4, lowermost to 20 cm long, 6 mm wide
Morphology Reproductive morphology Inflorescences
Inflorescence capitate, 2.5–3 cm across.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets many in a dense congested head, 10flowered, 10–12 mm long, 1.5–2 mm wide, rachis winged.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes white, lanceolate, the base concave and enclosing nutlet when falling, 5–7 mm long, keel slightly excurrent, with ± 6 veins on each side
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 3.
Morphology Reproductive morphology Flowers Gynoecium Style
Style 3-branched
Morphology Reproductive morphology Fruits
Nutlet reddish-brown, ellipsoid, trigonous, 1.7–1.8 mm long, 0.6–0.8 mm wide, minutely papillose, apiculate.
Ecology
Seasonally wet habitat; 100 m
Conservation
Data deficient, needs information on population and threats
Note
Based on Lye’s description. Closely related to angolensis, but without stolons, a more swollen culm base, smaller nutlet and bigger glumes.
Distribution
Flora districts: T6 Flora districts: Known only from the type

Native to:

Tanzania

Cyperus gigantobulbes Lye appears in other Kew resources:

First published in Nordic J. Bot. 3: 219 (1983)

Accepted by

  • 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 Tropical East Africa

  • Haines & Lye, Sedges & Rushes E. Afr.: 254, figs. 512, 513 (1983).
  • Nordic Journ. Bot. 3: 219 (1983)

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