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This species is accepted, and its native range is Tanzania to N. Malawi.

[FTEA]

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

Type
Types: Tanzania, Dodoma District: Lake Chaya, Peter 45768 & Tabora District: Goweko to Igalula, Peter 45934 (B, syn.)
Morphology General Habit
Slender annual 10–30 cm tall.
Morphology Stem
Stems few to many, crowded, 0.4–0.6 mm wide, angular, distictly ribbed, scabrid and sometimes with scattered hairs
Morphology Leaves
Leaves filiform, 5–10 cm long, scabrid or slightly hairy
Morphology Reproductive morphology Inflorescences
Inflorescence of one sessile and 1–4 stalked spikelets, with peduncles 0.2–2 cm long.
Morphology Reproductive morphology Inflorescences Bracts
Bracts 1–2, the larger 4–8 mm long, filiform with clasping membranous base.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets reddish brown, ovoid, 4–7 mm long, 2–4 mm wide.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes reddish brown, 2.5–3 mm long, shortly hairy; midrib ending below the rounded or emarginate tip
Morphology Reproductive morphology Fruits
Nutlet white, obpyriform with narrowed cuneate part, 1–2 mm long, 0.7–0.8 mm wide, with 3 distinct longitudinal ridges, 4–5 strong wrinkles on each side of the upper expanded part and also with close reticulation (see Haines & Lye fig 197, SEM).
Morphology Reproductive morphology Flowers Gynoecium Style
Style base not persistent.
Ecology
Seasonally flooded grassland, open Combretum-Terminalia woodland; 1200–1350 m
Note
" Peter 34255b (Tanzania, Dodoma District: Lake Chaya to Tura, is also cited in the main text of F.D.-O.A. Nutlets of approximately the same shape have been seen in some B. hispidula, e.g. Sitoni 1157 (Mwanza, Magu Hill) but that has the characteristic dense spreading pubescence.
Distribution
Flora districts: T4 T5 T7 Range: Not known elsewhere

Native to:

Malawi, Tanzania

Bulbostylis rotundata (Kük.) R.W.Haines appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Bidgood, S. [5851], Tanzania K000468574

First published in R.W.Haines & K.A.Lye, Sedges & Rushes E. Afr., App. 3: 1 (1983)

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.

Literature

Kew Backbone Distributions

  • Browning, J. & al. (2020). Flora Zambesiaca 14: 1-455. Royal Botanic Gardens, Kew.

Flora of Tropical East Africa

  • Sedges & Rushes E. Afr. App. 3: 1 (1983) main work: 110, fig. 197, 198 (1983).

Flora of Tropical East Africa
Flora of Tropical East Africa
http://creativecommons.org/licenses/by-nc-sa/3.0

Herbarium Catalogue Specimens

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