Cyperaceae
Bulbostylis

Bulbostylis nudiuscula (Lye) Lye

First published in Nordic J. Bot. 28: 517 (2010)
This species is accepted
The native range of this species is N. Zambia. It is an annual and grows primarily in the seasonally dry tropical biome.

Descriptions

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: threatened. Confidence: confident
[AERP]

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
Zambia, Kasama Dist., 13 km NE of Kasama, 27.iv.1961, Robinson 4622 (K holotype).
Morphology General Habit
Annual or short lived perennial, erect up to 48 cm tall; rhizome and tunic of leaf bases lacking
Morphology Leaves
Leaves lacking lamina or blade; sheath to 30 mm, hairs at sheath mouth few or absent, ligule 0
Morphology Culms
Culms 1–1.5 mm wide, ridged and furrowed, glabrous
Morphology Reproductive morphology Inflorescences
Inflorescence anthelate, of central spikelet with 2–3 inflorescence branches to 30 mm long, each terminating in a spikelet; bracts 4–6, 7–9 mm long, much shorter than inflorescence, glabrous except for few marginal long hairs
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets 10–12 × 2–3 mm
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes spiral, 5–7 mm long, glabrous to somewhat scabrid, light brown, margins paler, ciliate, midrib 3-nerved, centrally green, apex mucronate to shortly apiculate
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 3
Morphology Reproductive morphology Flowers Gynoecium Style
Style apically fimbriate, base triangular, vertically flattened, infrequently persistent on nutlet, branches 3, equalling style length
Morphology Reproductive morphology Fruits
Nutlet 1–1.2 × 0.9–1.1 mm, mottled, dark brown with light patches, obovoid, trigonous, ribs pronounced with raised papillae, surface variable, from transversely rugose to almost smooth.
Distribution
Zambia.
Ecology
Shallow lateritic pans, seasonally damp; c. 1400 m.
Conservation
Vulnerable. Known only from the type locality in the Kasama area; probably
[FZ]

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

  • 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