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This species is accepted, and its native range is Tanzania (Mt. Mnyera).
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: Tanzania, Kilosa District: Ukaguru Mts, Mt Mnyera, Thulin & Mhoro 2809 (UPS, holo.; K!, iso.)
Morphology General Habit
Perennial, very slender, up to 55 cm tall, with a short creeping rhizome.
Morphology Culms
Culms tufted, crowded and many, slender, 20–50 cm long, 0.5–0.6 mm wide, trigonous to angular, wiry, smooth
Morphology Leaves
Leaf sheath light reddish-brown above, dark purplish below, sometimes only ending in a short brown or green scabrid limb; when leaf blade present, filiform, wiry, flat, 20–50 cm long, 0.5–0.6 mm wide, glabrous, apex acute Leaves up to 50 cm long.
Morphology Reproductive morphology Inflorescences Bracts
Involucral bracts leaf-like, spreading, 2–5, lowermost 1.5–3.5 cm long, 0.5–0.6 mm wide
Morphology Reproductive morphology Inflorescences
Inflorescence capitate.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets in digitate clusters, 2–3 per cluster, sessile, more rarely with an additional stalked spikelet on a 2–5 mm long peduncle, linear-lanceolate, 3.5–6.3 mm long, 1.5–2.5 mm wide, rachis straight.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes reddish-brown, ovate, 2–2.4 mm long, 0.9–1.1 mm wide, glabrous, keel green slightly excurrent, apex acute
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 3.
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Filaments 1.7–1.8 mm long
Morphology Reproductive morphology Fruits
Nutlet reddish brown, ellipsoid, 1–1.2 mm long, 0.5–0.6 mm wide, almost smooth, sometimes the style base persistent on the young nutlet as a short mucro.
Ecology
On very steep slopes, partly with vertical bare rocks, on summit edge; 2075 m
Conservation
Probably at least Vulnerable (VU-D1)
Note
This species is very easy recognizable due to its wiry and slender habit, and is very different from all other African species.
Distribution
Flora districts: Known only from the type Flora districts: T6

Doubtfully present in:

Rwanda

Native to:

Tanzania

Cyperus graciliculmis Lye appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Apr 1, 1986 Thulin, M. [2809], Tanzania K000321446 Unknown type material

First published in Nordic J. Bot. 3: 224 (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. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne.
  • Hoenselaar, K., Verdcourt, B. & Beentje, H. (2010). Cyperaceae Flora of Tropical East Africa: 1-466.

Literature

Flora of Tropical East Africa

  • Haines & Lye, Sedges & Rushes E. Afr.: 161, fig. 299 (1983).
  • Nordic Journ. Bot. 3: 224 (1983)

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