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This species is accepted, and its native range is S. Ethiopia to S. Tropical 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: Malawi, Buchanan 1329 (K!, holo.)
Morphology General Habit
A densely tufted annual or short-lived perennial 5–35 cm tall.
Morphology Stem
Stems 0.3–0.6 mm wide, angular, scabrid or glabrous
Morphology Leaves
Leaves filiform, 2–20 cm long, 2–6 mm wide, scabrid.
Morphology Leaves Leaf sheaths
Sheaths pale brown with long hairs at mouth
Morphology Reproductive morphology Inflorescences
Inflorescence a solitary terminal head of few to many spikelets, 0.5–1.2 cm diameter.
Morphology Reproductive morphology Inflorescences Bracts
Bracts filiform, up to 5 cm long, usually long-setose.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets lanceolate, 3–6 mm long, 1–2 mm wide.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes reddish brown, ovate, 2.5–4 mm long, acute to mucronate, densely hairy
Morphology Reproductive morphology Fruits
Nutlets greyish, obovoid, triangular, 0.8–1.1 mm long, 0.6–0.7 mm wide, strongly transversely wrinkled with quite deep transverse grooves between the wrinkles which have close microscopic ribs, and with large papillae on the 3 angular longitudinal ribs.
Ecology
" Brachystegia and Julbernardia- Parinari woodland, open areas with sandy or lateritic soil, swamp, lake and stream edges, rock outcrops etc.; 350–1650 m
Note
Two specimens from Tanzania (Ufipa District: Lake Kwela, Mpui, 14 Mar. 1959, McCallum Webster c20!; Mbeya District: near road from Utengela to coffee farm below Mbeya Peak, 6 Apr. 1970, Wingfield 571(c) pro parte!) have the same transversely wrinkled nutlets; they occur with B. buchananii ( Wingfield 571(c)) but the solitary spikelet inflorescence is distinctive. They might represent a separate taxon.
Distribution
Range: Malawi Flora districts: K3 K4 K 6T1 T2 T3 T4 T5 T7 T8

Native to:

Burundi, Ethiopia, Kenya, Malawi, Mozambique, Tanzania, Zambia, Zaïre, Zimbabwe

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

Date Reference Identified As Barcode Type Status
Oct 1, 1892 Buchanan, J. [1329], Malawi K000416753
Bidgood, S. [5128], Tanzania K000190356
Bidgood, S. [5879], Tanzania K000468546
Bidgood, S. [6098], Tanzania K000468327
Bidgood, S. [5298], Tanzania K000190528
Bidgood, S. [5463], Tanzania K000190693

First published in D.Oliver & auct. suc. (eds.), Fl. Trop. Afr. 8: 437 (1902)

Accepted by

  • Browning, J. & al. (2020). Flora Zambesiaca 14: 1-455. Royal Botanic Gardens, Kew.
  • Edwards, S., Demissew, S., & Hedberg, I. (eds.) (1997). Flora of Ethiopia and Eritrea 6: i-xxviii, 1-586. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
  • 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

  • Browning, J. & al. (2020). Flora Zambesiaca 14: 1-455. Royal Botanic Gardens, Kew.
  • Edwards, S., Demissew, S., & Hedberg, I. (eds.) (1997). Flora of Ethiopia and Eritrea 6: i-xxviii, 1-586. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.

Flora of Tropical East Africa

  • Ann. Fac. Sci. Univ. Dakar 9: 75 (1963)
  • F.D.-O.A. 1: 413 (1938)
  • F.T.A. 8: 437 (1902)
  • Fl. Eth. 6: 417 (1997).
  • Haines & Lye, Sedges & Rushes E. Afr.: 114, fig. 209, 210 (1983)
  • J. E.A. Nat. Hist. Soc. 25 (110): 3, fig. 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