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This species is accepted, and its native range is Eritrea to S. Tropical Africa, Arabian Peninsula.
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
Tussocky perennial with few–many clustered oblong stem-bases on an obscure rhizome
Morphology Stem
Stems 20–40 cm long and 1–2 mm thick, triangular, glabrous, with many withered loose leaf sheaths at the base and appearing swollen
Morphology Leaves
Leaves with 5–30 cm long and 1–3 mm wide flat blades; sheaths pale above, brown below
Morphology Reproductive morphology Inflorescences
Spikes obscure, c. 10 mm long and 7–9 mm wide, consisting of 10–25 crowded spikelets Inflorescence a dense triangular to hemispherical contracted anthela 1–2 cm in diam.; involucral bracts 4–7, leafy, spreading or reflexed, the largest 10–30 cm long
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets 4–5 x 1.5–2 mm, ovate, only slightly compressed, 3–4-flowered
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes 3–4 mm long, pale but light to medium reddish brown at least in patches, with 5–8 prominent nerves on each side of the narrow green midrib that ends in the acute apex or is slightly excurrent
Morphology Reproductive morphology Flowers Gynoecium Style
Style with 3 long branches
Morphology Reproductive morphology Fruits
Nutlet 1.6–1.8 x c. 1 mm, oval, sharply triangular, minutely papillose.
Distribution
N1 North Africa.
Ecology
Intermediate altitude.

[FTEA]

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

Type
Type: Ethiopia, Scholoda Mt, Schimper I.173 (B!, syn.) & Schoata Mts, Schimper II.578 (B!, syn.), 588 (not found), 1363 (B!, syn.)
Morphology General Habit
Perennial, with short creeping rhizome.
Morphology Culms
Culms several, tufted, 10–60 cm high, 0.5–2 mm across, trigonous, glabrous, at base slightly swollen
Morphology Leaves
Leaves with leaf sheaths reddish brown with wide translucent margin, darker near very base, to 12 cm long; blade 10–66 cm long, 1.5–4 mm wide, scabrid on margin and midrib
Morphology Reproductive morphology Inflorescences Bracts
Involucral bracts 3–5, hanging or reflexed, wider at base, the longest 7–30 cm long, 3 mm wide
Morphology Reproductive morphology Inflorescences
Spikes ovoid to narrowly ovoid, 10–25 × 10–20 mm Inflorescence a simple anthela with 3–4 spikes to capitate and ± ovoid, mid- to dark brown, sessile or briefly stalked.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets 10–20, closely set along and at the end of primary branches, 5–10 × 1–2.5 mm, 2–6-flowered, compressed, falling off entire when mature; rachilla slightly winged.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes densely imbricate, reddish brown or yellowish with green keel, ovateoblong, 3.2–5 mm long, several-veined, apex acute
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 3.
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Filaments ? 3.5–4 mm long.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers 1.9–2 mm long
Morphology Reproductive morphology Flowers Gynoecium Style
Style 3-branched
Morphology Reproductive morphology Fruits
Nutlet reddish brown, oblongellipsoid, 1.8–2 × 0.6–0.7 mm, trigonous, apiculate, densely papillose.
Ecology
Rocky slopes and hilltops, in cracks or on flat rocks; 500–2000 m
Conservation
Least Concern (LC)
Note
Close to C. obsoletenervosus but lacks stolons. Of C. vexillatus Kükenthal says ‘in between vestitus and pseudovestitus’ but distinct from the first in hard keeled leaf sheaths and the blunt glumes, from the second in dark redpurple sheaths; I (HB) believe this agrees perfectly with the more capitate forms of C. neoschimperi.
Distribution
Range: Sudan, Ethiopia, Somalia Flora districts: U1 K1 K2 K4 T3 T6

Native to:

Eritrea, Ethiopia, Kenya, Malawi, Mozambique, Saudi Arabia, Somalia, Sudan, Tanzania, Uganda, Yemen, Zambia, Zimbabwe

Introduced into:

Nansei-shoto

Cyperus cruentus Rottb. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Schimper [2292], Ethiopia K000321390 isolectotype
Schimper [1363], Ethiopia K000321391 isosyntype
Schimper [578], Ethiopia K000321392 isosyntype
Schimper [173], Ethiopia K000321393 isosyntype

First published in Descr. Icon. Rar. Pl.: 21 (1773)

Accepted by

  • 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.
  • 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.

Literature

Kew Backbone Distributions

  • Browning, J. & al. (2020). Flora Zambesiaca 14: 1-455. Royal Botanic Gardens, Kew.
  • 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.
  • Walker, E.H. (1976). Flora of Okinawa and the southern Ryukyu islands: 1-1159. Smithsonian Institution Press, Washington D.C., U.S.A.

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