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This species is accepted, and its native range is Eritrea to S. Africa.
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: Eritrea, Mt Bizen, Schweinfurth & Riva 1851 (G, lecto., chosen by Lye)
Morphology General Habit
Tufted perennial (15–)20–70 cm tall with a short creeping rhizome.
Morphology Stem
Stems densely crowded, 0.6–1 mm wide, ridged, glabrous save for some short spike-like hairs beneath the inflorescence
Morphology Leaves
Leaves 5–15 cm long, 0.5–1 mm wide, flat or channelled, glabrous or with a few spine-like hairs.
Morphology Leaves Leaf sheaths
Sheaths pale brown, glabrous save for the long flexuous hairs at the throat
Morphology Reproductive morphology Inflorescences
Inflorescences of 2–12 spikelets either sessile and capitate or 1–3 additional stalked inflorescences, sometimes of only 1 spikelet.
Morphology Reproductive morphology Inflorescences Bracts
Bracts inconspicuous.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets 6–10 mm long, 2–4 mm wide.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes reddish brown with green midrib, 4–6 mm long, acute or subulate, pubescent or with ciliate margins
Morphology Reproductive morphology Fruits
Nutlets pale brown, obovoid, triangular, 1.3–1.6 mm long, ± 1 mm wide, transversely wrinkled with densely set longitudinal white lines crossing the wrinkles.
Morphology Reproductive morphology Flowers Gynoecium Style
Style base dark 0.2 mm long, persistent
Figures
Fig. 12, p74

[FTEA]

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

Type
Type: Tanzania, Tanga District: E Usambaras, Bombwera, Holst 2199 (B†, holo.; K!, iso.)
Morphology Reproductive morphology Inflorescences
Inflorescences laxer, typically with a single sessile spikelet surrounded by 1–5 stalked spikelets on peduncles 0.5–1.5 cm long, but usually with several spikelets in each element.
Ecology
Grassland and open bushland, often in rocky places but also in damp depressions, Brachystegia woodland; 100–1700 m
Note
By extending the definition of the variety I have called practically anything with a less robust branched inflorescence var. transiens and anything with a robust spherical head var. boeckeleriana; but many intermediates occur. There seems to be some geographical influence with eastern areas having predominantly more specimens with branched inflorescences; but there are many intermediates and it may prove best not to recognise varieties. Gordon-Gray has noted on the Kew isotype of var. transiens that it is the same species as Gerrard 698 and Buchanan 337 from Natal, which she has annotated as B. boeckelerianus. Despite the fact she states such variants (as transiens) are not known for Natal they do occur.
Distribution
Flora districts: U3 K 4/ K6 K7 T2 T3 T6 T7 T8 Range: Mozambique, South Africa

Native to:

Burundi, Cape Provinces, Eritrea, Ethiopia, Kenya, KwaZulu-Natal, Malawi, Mozambique, Northern Provinces, Rwanda, Sudan, Tanzania, Uganda, Zambia, Zimbabwe

Bulbostylis boeckeleriana (Schweinf.) Beetle appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Dec 21, 2006 Katende, A.B. [934], Uganda K000480660
Dec 14, 2006 Bogdan, A. [5037], Kenya K000480657
May 31, 1988 Robertson, S.A. [5120], Kenya K000480663
Schweinfurth, G. [105], Eritrea K000416727
Schweinfurth, G. [106], Eritrea K000416728
Schweinfurth, G. [105], Eritrea K000416729
Bidgood, S. [5217], Tanzania K000190445
Katende, A.B. [561], Uganda K000480659
Haines, R.W. [4081], Uganda K000480662
Moll, E.J. [2139], South Africa K000480665
Coleman, T.A. [687], South Africa K000480668
Moll, E.J. [1497], South Africa K000480669
Stirton, C.H. [526], South Africa K000480666
Lye, K.A. [5030], Uganda K000480661
Ward, C.J. [10067], South Africa K000480664
Schweinfurth, G. [837], Eritrea K000416730
Brown [216], South Africa K000480667
Hepper, F.N. [6834], Kenya K000480658
Holst, C. [2199], Tanzania Bulbostylis boeckeleriana var. transiens K000416738
Fries, R.E. [339], Kenya Bulbostylis vaginosa K000416748
Fries, R.E. [316], Kenya Bulbostylis vaginosa K000416749

First published in Amer. Midl. Naturalist 41: 458 (1949)

Accepted by

  • Browning, J. & al. (2020). Flora Zambesiaca 14: 1-455. Royal Botanic Gardens, Kew.
  • 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.
  • Masharabu, T., Bigendako, M.J., Lejoly, J., Nkengurutse, J., Noret, N., Bizuru, E. & Bogaert, J. (2010). Etude analytique de la flore et de la végétation du Parc National de la Ruvubu, Burundi International Journal of Biological and Chemical Sciences 4: 834-856.
  • Thiombiano, A., Schmidt, M., Dressler, S., Ouédraogo, A., Hahn, K. & Zizka, G. (2012). Catalogue des plantes vasculaires du Burkina Faso Boissiera 65: 1-391.

Literature

Kew Backbone Distributions

  • Browning, J. & al. (2020). Flora Zambesiaca 14: 1-455. Royal Botanic Gardens, Kew.
  • Hoenselaar, K., Verdcourt, B. & Beentje, H. (2010). Cyperaceae Flora of Tropical East Africa: 1-466.
  • Masharabu, T., Bigendako, M.J., Lejoly, J., Nkengurutse, J., Noret, N., Bizuru, E. & Bogaert, J. (2010). Etude analytique de la flore et de la végétation du Parc National de la Ruvubu, Burundi International Journal of Biological and Chemical Sciences 4: 834-856.

Flora of Tropical East Africa

  • Amer. Midl. Nat. 41: 458 (1949)
  • Fl. Eth. 6: 414, fig. 212.35 (1997).
  • Fl. Rwanda 4: 424 (1988)
  • J. E.A. Nat. Hist. Soc. 25 (110): 4, figs. 10, 11, 18 (1965)
  • Strelitzia 2: 30, fig. 10B, E (1995)

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