Cyperaceae
Bulbostylis

Bulbostylis vanderystii Cherm.

First published in Rev. Zool. Bot. Africaines 24: 299 (1934)
This species is accepted
The native range of this species is Gabon to W. Tanzania. It is a perennial or rhizomatous geophyte and grows primarily in the seasonally dry tropical biome.

Descriptions

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

Type
Type: Congo-Kinshasa, Kasai, Panzi, Vanderyst 16050 (BR, holo.)
Morphology General Habit
Tufted herb 25–45 cm tall.
Vegetative Multiplication Rhizomes
Rhizome horizontal
Morphology Stem
Short, woody. Stems 0.5–0.75 mm wide, smooth, glabrous, striate
Morphology Leaves
Leaves: all leaves burnt off ± 5 cm above top of roots in cited specimen; described as 10–20 cm long, 0.25 mm wide, channelled, slightly scabrid, glabrous.
Morphology Leaves Leaf sheaths
Sheaths red-brown, the mouth densely long-pilose
Morphology Reproductive morphology Inflorescences
Inflorescences a head 7–10 cm wide of 6–10 spikelets; involucral bracts 2–3, erect, 0.5–1 cm long.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets lanceolate, 6–8 mm long, 2–2.5 mm wide, acute.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes not distichous, ferruginous with straw-coloured keel, thin, lanceolate, 4.5 mm long, shortly mucronate, ± 3–5-veined
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 3
Morphology Reproductive morphology Flowers Gynoecium Style
Style 3-fid, glabrous Style-base brownish, small
Morphology Reproductive morphology Fruits
Nutlet yellowish, obovoid, trigonous, ± smooth.
Ecology
Grassland and sand overlying rock; ± 1710 m
Note
The specimen has originally been determined as B. cinnamomea (Boeck) C.B. Clarke but redetermined by Bodard in 1961. Neither name is mentioned by Haines & Lye. Bodard wrongly cites the specimen as Bullock 3767.
Distribution
Range: Congo-Kinshasa Flora districts: T4
[FTEA]

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 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 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