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This species is accepted, and its native range is S. Somalia to Mozambique and Queensland.
A specimen from Kew's Herbarium

[FSOM]

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

Morphology General Habit
Tufted annual with a shallow root system and 5–30 cm long stems
Morphology Leaves
Leaves 5–15 cm long and 2–5 mm wide, flat, scabrid on margin and midrib; leaf-sheaths grey to reddish brown
Morphology Reproductive morphology Inflorescences
Inflorescence of a few crowded spikes or with 1–few sessile spikes and 1–8 stalked spikes on 0.5–10 cm long peduncles; involucral bracts 3–6, leafy, erect or spreading, the largest 6–25 cm long and 1.5–6 mm wide, flat Spikes 6–22 mm long and 6–16 mm wide, with (3–)5–10(–25) spreading spikelets
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets 3–8 x 1.5–3.5 mm, ovate-lanceolate, appearing spiny with the spreading tips of the glumes
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes 2–3 mm long, golden or greyish with a green midrib excurrent in a recurved mucro and with 2–4 very prominent lateral nerves on each side of the midrib
Morphology Reproductive morphology Flowers Gynoecium Style
Style with 2 branches
Morphology Reproductive morphology Fruits
Nutlet 1.3–1.5 x 1–1.2 mm, flattened, somewhat cordate, brown to dark grey, minutely papillose.
Distribution
S2 scattered in eastern Africa, Madagascar, tropical Asia and Australia.
Ecology
Near sea-level.

[FTEA]

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

Type
Type: India, Roettler s.n. (C, holo.)
Morphology General Habit
Tufted annual 5–40 cm tall.
Morphology Culms
Culms 5–30 cm long
Morphology Leaves
Leaves basal, flat, 5–15 cm long, 2–6 mm wide, glabrous save for scabrid margins and midrib.
Morphology Leaves Leaf sheaths
Sheaths grey to reddish brown
Morphology Reproductive morphology Inflorescences Bracts
Involucral bracts 3–6, similar to leaves, 6–25 cm long, 1.5–6 mm wide
Morphology Reproductive morphology Inflorescences
Spikes 0.8–1.8 cm long, 0.7–1.7 cm wide with 8–15 ovate to ovateelliptic compressed spikelets 4–9 × 1.5–2.5 mm Inflorescence a simple umbel or with 1–few sessile spikes and 1–8 stalked spikes; rays up to 12 cm long.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes 3–9, yellow or greenish yellow, lanceolate-ovate or ovate, 2–3.5 mm long, keeled, prominently 3–4-veined, with scabrid margins, the green midrib excurrent with recurved tips
Morphology Reproductive morphology Fruits
Nutlet dark grey or brown, 1.3–1.5 mm long, 1–1.2 mm wide, rounded, truncate or slightly emarginate at the apex, finely densely papillate
Figures
Fig. 46, p309
Ecology
Grassland, bushland on coral rag, also as a weed in coastal lawns, sisal plantations and under coconut palms; sea-level–30 m
Conservation
Least concern (LC) due to its wide distribution
Distribution
Flora districts: K7 T6 T8 Z Range: Mozambique; Mauritius, Madagascar, Maldives, India, Sri Lanka, Malesia, Australia

Native to:

Borneo, Cocos (Keeling) Is., Comoros, India, Jawa, Kenya, Laccadive Is., Lesser Sunda Is., Madagascar, Maldives, Maluku, Mauritius, Mozambique, New Guinea, Queensland, Somalia, Sri Lanka, Tanzania, Vietnam

Introduced into:

Florida

Cyperus hyalinus Vahl appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Wight, R. [1808], India Queenslandiella hyalina K001057257

First published in Enum. Pl. Obs. 2: 320 (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 Queenslandiella hyalina.]
  • Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne. [Cited as Queenslandiella hyalina.]

Literature

Kew Backbone Distributions

  • Browning, J. & al. (2020). Flora Zambesiaca 14: 1-455. Royal Botanic Gardens, Kew.
  • Fosberg, F.R. (1957). The Maldive islands, Indian Ocean Atoll Research Bulletin 58: 1-37.
  • GBIF (2008- continuously updated). Global Biodiversity Information Facility http://www.gbif.org/.

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

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