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This subspecies is accepted, and its native range is Tropical & S. Africa.


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

Type: Uganda, Kigezi District: N slope of Mgahinga–Muhavura saddle, Lye 5329 (EA, holo.; K!, iso.)
Morphology General
Differs from typical subsp by the glumes being rounded on the back rather than having a distinct keel, and the nutlets with less evident tubercles.
Upland grassland, both dry and bordering swampy streams, murram pits, dry rocky places with thin or eroded soil particularly in forest ( Juniperus, bamboo) clearings, damp rocks of waterfalls, also more lowland grassland and Combretum-Acacia scrub; (1200–)1400–2600 m
I have followed Lye recognising this subsp. afromontana but it is not well defined. The variation and distribution of B. densa in Africa needs more study, particularly how the lowland and highland variants can be separated. " Maas Geesteranus 5811 (Kenya, Kericho District: SW Mau Forest Reserve) from 1920 m differs in its nutlet sculpture, having transverse lines of short vertical ribs and neither tuberculate nor transversely rugulose as in B. pusilla. Kerfoot 2929 from the same district, Sambret, appears exactly similar so some distinct taxon may be involved. " B. densa and B. pusilla are not always easily distinguished and a number of specimens with neither papillate nor transversely rugulose sculpture, but with merely reticulate cell pattern, resemble both; e.g. Robinson 5095 (Tanzania, Ufipa District: Mwimbi, 21 Apr. 1962) could belong to either; Smith, Beentje & Muasya 170 & 171 (Kenya, Trans-Nzoia District: Mt Elgon National Park, Koitoboss route, 3 Nov. 2000 at 3150 m) and Smith, Beentje & Muasya 180 (from the same area but at 3320 m) have similar reticulate nutlets and may be a new high altitude taxon.
Range: Congo-Kinshasa, Rwanda, Ethiopia Flora districts: U1 U2 U3 U4 K1 K3 K4 K5 T1 T2 T3 T4 T6 T7

Native to:

Angola, Burkina, Burundi, Cameroon, Cape Provinces, Central African Repu, Chad, Ethiopia, Free State, Gabon, Guinea, Gulf of Guinea Is., Kenya, KwaZulu-Natal, Lesotho, Liberia, Malawi, Mali, Mozambique, Niger, Northern Provinces, Rwanda, Senegal, Sierra Leone, Sudan, Swaziland, Tanzania, Togo, Uganda, Zambia, Zaïre, Zimbabwe

Bulbostylis densa subsp. afromontana (Lye) R.W.Haines appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Bidgood, S. [5250], Tanzania K000190478
Bidgood, S. [5517], Tanzania K000190747
Bidgood, S. [5516], Tanzania K000190746

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.


Kew Backbone Distributions

  • Boulvert, Y. (1977). Catalogue de la Flore de Centrafrique 2(2): 1-94. ORSTOM, Bangui.
  • Browning, J. & al. (2020). Flora Zambesiaca 14: 1-455. Royal Botanic Gardens, Kew.
  • Jongkind, C. (2014). Fauna & Flora of Liberia, flowering plant species list
  • Thiombiano, A., Schmidt, M., Dressler, S., Ouédraogo, A., Hahn, K. & Zizka, G. (2012). Catalogue des plantes vasculaires du Burkina Faso Boissiera 65: 1-391.

Flora of Tropical East Africa

  • B.J.B.B. 55: 251 (1985)
  • Fl. Rwanda 4: 424 (1988)
  • Sedges & Rushes E. Afr. App. 3: 1 (1983)
  • Strelitzia 2: 31, figs. 10H, K (1995).

Flora of Tropical East Africa
Flora of Tropical East Africa

Herbarium Catalogue Specimens

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at and
© Copyright 2017 World Checklist of Selected Plant Families.

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at and
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families.