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This species is accepted, and its native range is Central Somalia.
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

Type
C1, 20 km W of Xarardheere, 4°37’N, 47°41’E, Beckett 202 (K holo.)
Morphology General Habit
Perennial without an apparent rhizome, but with aggregated woody stem bases
Morphology Stem
Stems 25–35 cm long and 0.6–1.5 mm thick, terete or slightly angular with many low longitudinal ridges, glabrous, yellowish below, green above
Morphology Leaves
Leaves 10–20 cm long and c. 1 mm wide, folded or inrolled with a narrow pale scabrid marginal border, the numerous crowded old basal sheaths forming a bone-like cylinder; blades filiform, 0.3–0.5 mm wide
Morphology Reproductive morphology Inflorescences
Inflorescence a simple anthela 4–8 x 2–7 cm, usually with 8–15 spreading or reflexed spikelets from a c. 1 cm long axis, rarely depauperate anthelas contain 2–5 spikelets only; involucral bract solitary, but may appear as 2–3 since the 1–2 lowermost spikelets have subtending bracts ending in a filiform, reflexed, 5–15 cm long leaf-blade
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets 15–40 mm long (the largest in each anthela always at least 25 mm long) and 3–4 mm wide, linear with acute apex, mostly 20–35-flowered
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes 5–6 mm long, ovate-elliptic, medium to dark reddish brown with a prominent pale marginal border and 5–7 slender but prominent nerves on each side of the midrib that is green in the upper half and excurrent into a c. 1 mm long straight or slightly recurved green awn
Morphology Reproductive morphology Flowers Gynoecium Style
Style with 3 branches
Morphology Reproductive morphology Fruits
Nutlet c. 1 x 0.5 mm, obovate, rounded-triangular, medium reddish brown to greyish, minutely papillose.
Distribution
C1 not known elsewhere.
Ecology
Altitude range 340–350 m.

Native to:

Somalia

Cyperus ossicaulis Lye appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Apr 18, 1994 Beckett, J.J. [202], Somalia K000321408 holotype

First published in Kew Bull. 51: 205 (1996)

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.

Literature

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

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