Asteraceae
Bidens

Bidens magnifolia Sherff

First published in Bot. Gaz. 90: 390 (1930)
This species is accepted
The native range of this species is Tanzania.

Descriptions

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

Morphology General Habit
Perennial herb or shrub, 0.6–3 m high; stem to 3 cm in diameter, ‘ringed’ with leaf scars, much branched, sparsely pubescent to glabrous.
Morphology Leaves
Leaves ovate in outline, simple (near stem apex) to pinnatisect, 6–20(–26) cm long, 5–16 cm wide, when pinnatisect with 3–9 ovate to lanceolate segments 3–10 cm long and 1–4 cm wide, the terminal segment largest, margins serrate, apex attenuate, sparsely scabridulous on both surfaces; petiole 1–7 cm long.
Morphology Reproductive morphology Inflorescences Capitulum
Capitula in terminal lax corymbose cymes; stalks of individual capitula 2–20 cm long; involucre 6–12 mm long; outer phyllaries 6–12, green, often reflexed, glabrous or pilose, inner phyllaries 8–10, free or partly connate; paleae to 8 mm long.
Morphology Reproductive morphology Flowers Florets
Ray florets yellow, neuter, 8, tube 2–3 mm long, pilose, rays 20–35 mm long, 6–15 mm wide; disc florets yellow to brownish yellow, 7–8 mm long, glabrous.
Morphology Reproductive morphology Fruits
Achenes dark brown, oblong to obovoid, 4.5–9.5 mm long, strigose, margins narrowly callose-thickened; pappus of 2(–4) aristae 1–3.5 mm long, with few barbs near apex, both antrorse and retrorse on the same arista.
Habitat
orest clearings and margins, secondary vegetation in forest zone; 600–2300 m
Distribution
not known elsewhere T3 T5 T6 T7
[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