Asteraceae
Bidens

Bidens ternata (Chiov.) Sherff

First published in Bot. Gaz. 90: 391 (1930)
This species is accepted
The native range of this species is Cameroon to Ethiopia and Tanzania. It 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: not threatened. Confidence: confident
[AERP]

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/97225833/97225843

Conservation
LC - least concern
[IUCN]

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

Morphology General Habit
Perennial herb, 0.6–2 m high, stems erect, several from a woody rootstock, ± glabrous.
Morphology Leaves
Leaves opposite or ternate, sessile and simple, sometimes deeply lobed or pinnately 3-lobed, 3–22 cm long, 0.6–4 cm wide, base cuneate to cordate, margins crenate, serrate, deeply toothed or lobed, apex acute, with 2 lines of scabrid hairs on margins, otherwise scabrid to glabrous.
Morphology Reproductive morphology Inflorescences Capitulum
Capitula few in lax terminal cymes; stalks of individual capitula to 8 cm long; involucre 5–22 mm long; outer phyllaries 11–30, green, inner phyllaries 13–15, orange, all pubescent outside; paleae yellow, 4–9 mm long.
Morphology Reproductive morphology Flowers Florets
Ray florets yellow to orange-yellow, pistillate and fertile, 12–15, tube 1.5–2.3 mm long, rays 14–30 mm long; disc florets yellow, 3–5 mm long.
Morphology Reproductive morphology Fruits
Achenes black or brown, ellipsoid, 3–6.4 mm long; aristae 2, 0.5–4 mm long, antrorsely barbed.
Habitat
rassland, bushland, forest clearings and margins, ruderal; 1500–2700 m
Distribution
K3 K5 T1 U1 U2
[FTEA]

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

    • 'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    • Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

  • IUCN Categories

    • IUCN Red List of Threatened Species
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2025. 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 2025. 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