Bidens elgonensis (Sherff) Agnew

First published in Upland Kenya Wild Fl.: 466 (1974)
This species is accepted
The native range of this species is Uganda to Kenya. It grows primarily in the montane tropical biome.

Descriptions

Compositae, H. Beentje, C. Jeffrey & D.J.N. Hind. Flora of Tropical East Africa. 2005

Morphology General Habit
Perennial herb or shrub 0.4–1.2 m high; stems erect or leaning on other vegetation, branched near apex, thin and brittle, glabrous.
Morphology Leaves
Leaves obovoid in outline, pedately tripartite, 2–5 cm long, 1.5–4 cm wide, the segments lobed or serrate, 2–7(–12) mm wide, apex acute to apiculate, hispid especially on midrib and margins, black-punctulate; petiole absent or up to 5 mm long.
Morphology Reproductive morphology Inflorescences Capitulum
Capitula terminal and solitary or few in lax cymes; peduncle 2–9 cm long; involucre 8–10 mm long; outer phyllaries 6–11, pilose, inner phyllaries ± 8, green with yellow margins, sparsely pilose; paleae light brown with purple apex, 6–7 mm long.
Morphology Reproductive morphology Flowers Florets
Ray florets yellow or golden yellow, neuter, 8–13, rays 8–13x3–5 mm; disc florets yellow, ± 5 mm long.
Morphology Reproductive morphology Fruits
Achenes black, oblong-ellipsoid, 4–6 mm long, glabrous; pappus absent.
Habitat
pland grassland and in Erica bushland, low scrub (regenerating) and Hagenia - Hypericum zone; 2500–3600 m
Distribution
endemic to Mt Moroto, Mt Elgon and the Cherangani Mts K3 U1 U3
[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: 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 2024. 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 2024. 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