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This species is accepted, and its native range is 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, Machakos District: Kikumbuliyu, Ngomeni, Scott Elliot 6170 (K!, holo.; BM, iso.)
Morphology General Habit
Short-lived perennial (or sometimes annual fide Greenway & Kanuri 12770) herb 10–35 cm tall, with short woody rhizome and slender roots.
Morphology Stem
Stems 0.5–1 mm wide, obscurely triangular or round, sometimes hairy, glabrous or minutely scabrid below the inflorescence
Morphology Leaves
Leaves borne from basal 5 cm of plant; blades 3–8 cm long, 0.3–0.5 mm wide, flat, with 3 prominent ribs on lower surface.
Morphology Leaves Leaf sheaths
Sheaths pale reddish brown or whitish with scattered reddish-brown dots, minutely hairy and with many long flexuous hairs at the throat
Morphology Reproductive morphology Inflorescences
Inflorescence 1–2.5 mm long, 1–3 mm wide consisting of 1 sessile spikelet and 3–5 stalked spikelets or spikelet clusters. Inflorescence bracts 3 or 4, erect or spreading with glume-like base and excurrent green leafy tip 0.5–3 mm long.
Morphology Reproductive morphology Inflorescences Peduncles
Peduncles 0.5–1.5 cm long, minutely hairy.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets pale brown with green midrib, ovoid-ellipsoid, 4–7 mm long, 1.5–2.5 mm wide, 8–20-flowered.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes pale reddish brown with green midrib, ovate-elliptic, membranous, 2.5–3 mm long, densely shortly white-hairy
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 3
Morphology Reproductive morphology Flowers Gynoecium Style
Style dark reddish brown, 3 mm long with 3 densely hairy stigmas Style base dark brown, persistent.
Morphology Reproductive morphology Fruits
Nutlets silvery white or cream, obovoid, bluntly triangular in section, 0.8–1 mm long, 0.7 mm wide with ± 10 transverse wrinkles on each side, the angles with one row of cells longer than wide, the wrinkles with close ribs.
Ecology
Isolated plants in sand pockets in rock crevices, mixed grassland on granite rock pavements, pasture derived from cleared bushland; 150–1050 m
Note
A population growing by hot springs near the soda lake Bogoria [Lake Hannington] was at first considered a new species by Muasya but he later decided it was B. argenteobrunnea. There are six collections from Bogoria at EA; Bally 15140 (W shore on S end of the lake, 26 June 1972) is one example.
Distribution
Range: Not known elsewhere Flora districts: K3 K4 K7

Native to:

Kenya

Bulbostylis argenteobrunea C.B.Clarke appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Jan 8, 1896 Scott Elliot, G.F. [6270], Kenya K000416735

First published in D.Oliver & auct. suc. (eds.), Fl. Trop. Afr. 8: 440 (1902)

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 Tropical East Africa

  • Ann. Fac. Sci. Univ. Dakar 9: 78 (1963)
  • Haines & Lye, Sedges & Rushes E. Afr.: 102, fig. 177, 178 (1983).
  • J. E.A. Nat. Hist. Soc. 25 (110): 6 (1965)

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