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

[FTEA]

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

Type
Type: Kenya, Northern Frontier District: Garissa to Modo-Gash, 13 km S of Modo-Gash, Stannard & Gilbert 938 (EA, holo.; K!, iso.)
Morphology General Habit
Tufted annual 5–12 cm tall with very small root system.
Morphology Stem
Stems 0.3–0.5 mm wide, prominently ribbed and with short spine-like hairs
Morphology Leaves
Leaves basal, the blades 1–5 cm long, 0.3–0.7 mm wide, densely scabrid on margin and ribs.
Morphology Leaves Leaf sheaths
Sheaths straw-coloured to pale brown, densely scabrid and with long flexuous hairs in the throat
Morphology Reproductive morphology Inflorescences
Inflorescence 5–20 mm wide, of 2–5 crowded spikelets; main bract filiform, 5–10 mm long, the only one longer than a spikelet.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets straw and brown or pale green, ovoid, 3–6 mm long, 2–4 mm wide.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes greyish or straw-coloured but often reddish brown below, ovate, 2.6–3 mm long, pubescent; midrib green, produced as a
Ecology
" Commiphora, Euphorbia, Cordia, Acacia etc. bush with sparse ground cover; 250–?1800 m
Note
I at first thought the Naivasha specimen might be incorrectly named, since although it closely resembles the type, the nutlets did not agree with Haines & Lye’s SEM figure. I then discovered that nutlets from the K isotype did not agree either. This is presumably to do with maturity.
Distribution
Flora districts: K1 K3 Range: Somalia

[FSOM]

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

Morphology General Habit
Slender tufted annual; stems 5–12 cm long and 0.3–0.5 mm thick, scabrid
Morphology Leaves
Leaf-blades 1–5 cm long and 0.3–0.7 mm wide, densely scabrid on margin and ribs; leaf-sheaths straw-coloured to light brown, densely scabrid
Morphology Reproductive morphology Inflorescences
Inflorescence a solitary terminal cluster (5–10 mm wide), of 2–5 sessile spikelets; major inflorescence-bract filiform, 5–10 mm long
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets 3–6 x 2-4 mm, ovoid, greyish
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes 2.6–3 mm long, ovate, pubescent, greyish or straw-coloured, but often reddish-brown below; midrib green, excurrent in a distinct mucro
Morphology Reproductive morphology Fruits
Nutlet 0.7–0.8 x 0.4–0.5 mm, triangular, light brown with the base of the style persisting as a darker knob, indistinctly reticulate with rectangular surface-cells.
Distribution
S3; Kenya
Ecology
Altitude range 20–100 m.

Native to:

Kenya, Somalia

Bulbostylis pallescens (Lye) R.W.Haines appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Stannard, B. [938], Kenya K000416747 isotype

First published in R.W.Haines & K.A.Lye, Sedges & Rushes E. Afr., App. 3: 1 (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. (1996). World Checklist of Seed Plants 2(1, 2): 1-492. MIM, Deurne.
  • Hoenselaar, K., Verdcourt, B. & Beentje, H. (2010). Cyperaceae Flora of Tropical East Africa: 1-466.

Literature

Kew Backbone Distributions

  • Hoenselaar, K., Verdcourt, B. & Beentje, H. (2010). Cyperaceae Flora of Tropical East Africa: 1-466.

Flora of Somalia

  • Flora Somalia, Vol 4, (1995) Author: by K. A. Lye [updated by M. Thulin 2008]

Flora of Tropical East Africa

  • Fl. Somalia 4: 111 (1995).
  • main work: 124, figs. 236, 237 (1983)

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