Cyperaceae
Bulbostylis

Bulbostylis andongensis (Ridl.) C.B.Clarke

First published in T.A.Durand & H.Schinz, Consp. Fl. Afric. 5: 611 (1894)
This species is accepted
The native range of this species is W. Central & S. Tropical Africa. It is an annual and grows primarily in the seasonally dry tropical biome.

Descriptions

J. Browning, K.D. Gordon-Gray†, M. Lock, H. Beentje, K. Vollesen, K. Bauters, C. Archer, I. Larridon, M. Xanthos, P. Vorster, J. Bruhl, K. Wilson and X. Zhang (2020). Flora Zambesiaca Volume: 14: Cyperaceae. M.Á. García, J.R. Timberlake (Eds). Kew Publish

Type
Angola, Pundo Andongo, between Condo and Quisonde, iii.1857, Welwitsch 6820 (BM syntype, LISU); Pungo Andongo, i.1857, Welwitsch 6823, 6827 (BM syntypes).
Morphology General Habit
Tufted annual, 10–30 cm tall
Morphology Leaves
Leaves numerous, half to sometimes equalling culm length; leaf sheaths membranous, rust-brown, mouth inconspicuously long white-fringed, ligule 0; leaf blades up to 150 mm, filiform, setaceous, some long hairs present, hairs stiff and bristly
Morphology Culms
Culms ridged and furrowed
Morphology Reproductive morphology Inflorescences
Inflorescence anthelate, variable, a central spikelet and 2–5 spikelets added on equally long diverging, hispid-branches; bracts 3–4, filiform, shorter or sometimes longer than inflorescence, margins white fringed
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets 6–7 mm long, ellipsoid, dark-brown
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes spiral, boat-shaped, 3–3.5 mm long, finely scabrid, margins ciliate, apex mucronate to shortly apiculate
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 3
Morphology Reproductive morphology Flowers Gynoecium Style
Style glabous, base dark brown, rounded, vertically flattened, persistent on nutlet, branches 3, usually shorter than style
Morphology Reproductive morphology Fruits
Nutlet c. 1 mm long, obtusely trigonous, obovoid, transversely rugose (many papillate rugae closely placed).
Distribution
Zimbabwe. Also in Central African Republic, Congo, Gabon, D.R. Congo and Angola;
Ecology
500– 1400 m.
Conservation
Not widely distributed; not threatened.
[FZ]

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation
Predicted extinction risk: not threatened. Confidence: confident
[AERP]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0

  • Flora Zambesiaca

    • Flora Zambesiaca
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2026. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0

  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2026. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0