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This species is accepted, and its native range is W. Tropical Africa, Tanzania to S. Africa, W. Indian Ocean, S. India, Bangladesh.

[FTEA]

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

Type
Type: Mozambique, Dondo near Beira, Schlechter 12254 (B, BR, PRE, syn.) & Tanzania, without locality, Busse 749 (B, syn.)
Morphology General Habit
Robust perennial up to 90 cm high, with thick, somewhat bulbous stem-bases surrounded by the fibrous remains of old sheaths, sometimes a short rhizome present.
Morphology Culms
Culms tufted, 30–80 cm long, 1–2.3 mm wide, trigonous, smooth
Morphology Leaves
Leaf blade linear, plicate, 12–40 cm long, 2–3.8 mm wide, acuminate, apex scabrid Leaves many, crowded near the base of the culm, up to 45 cm long. Leaf sheath pale green to brown, 2–6 cm long.
Morphology Reproductive morphology Inflorescences Bracts
Involucral bracts leaf-like, spreading, the lowermost 13–29 cm long, 2.4–4.2 mm wide, scabrid
Morphology Reproductive morphology Inflorescences
Inflorescence simple to compound, primary branches 3–9, 1–10 cm long.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets up to 30 per cluster, linear, 8–18(–25) mm long, 0.8–1.5 mm wide, axis straight, sometimes slightly curved. Spikelets in loose clusters on elongated axis at the end of primary or secondary branches.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes golden yellow, turning olive green in patches, elliptic, 1.7–2.3 mm long, 0.8–1.1 mm wide, keel rounded, 3-veined, green, apex obtuse
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 3.
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Filaments ± 1.1 mm long.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers 0.8–1.2 mm long
Morphology Reproductive morphology Flowers Gynoecium Stigma
Stigma 2-branched
Morphology Reproductive morphology Fruits
Nutlet black, narrowly ellipsoid-obovoid, 1.2 mm long, 0.5 mm wide, minutely papillose
Ecology
Seasonally wet grasslands and river-sides; 300–1050 m
Conservation
Least Concern (LC) due to distribution and habitat.
Note
This species has similarities with P. polystachyos var. laxiflorus, but P. atribulbus is more robust, with often fibrous remains of old sheaths surrounding its base, which P. polystachyos var. laxiflorus misses.
Distribution
Range: Zambia, Malawi, Mozambique, South Africa Flora districts: T3 T6 T8

[FWTA]

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

Morphology General Habit
Similar to 19b (Pycreus polystachyos var. laxiflorus) but more robust
Ecology
In similar habitats but less widespread.

Native to:

Bangladesh, Cape Provinces, Guinea, Guinea-Bissau, India, KwaZulu-Natal, Madagascar, Malawi, Mauritius, Mozambique, Northern Provinces, Réunion, Senegal, Swaziland, Tanzania, Zambia, Zimbabwe

Cyperus intactus Vahl appears in other Kew resources:

First published in Enum. Pl. Obs. 2: 332 (1805)

Not 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. [Cited as Pycreus intactus.]
  • Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne. [Cited as Pycreus intactus.]

Literature

Kew Backbone Distributions

  • Browning, J. & al. (2020). Flora Zambesiaca 14: 1-455. Royal Botanic Gardens, Kew.
  • Lisowski, S. (2009). Flore (Angiospermes) de la République de Guinée Scripta Botanica Belgica 41: 1-517.
  • Marais, W. & Araujo, A.C. (2018). Flore des Mascareignes 202: 1-99. IRD Éditions, MSIRI, RBG-Kew, Paris.
  • Mostaph, M.K. & Uddin, S.B. (2013). Dictionary of plant names of Bangladesh, Vasc. Pl.: 1-434. Janokalyan Prokashani, Chittagong, Bangladesh.

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

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