Asteraceae
Senecio

Senecio syringifolius O.Hoffm.

First published in Bot. Jahrb. Syst. 20: 236 (1894)
This species is accepted
The native range of this species is Kenya to S. Tropical Africa.

Descriptions

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

Morphology General Habit
Liana twining to 1.5–10 m high or long, rather succulent; stems up to 1.5 cm in diameter, glabrous, developing a grey bark when old.
Morphology Leaves
Leaves glossy, triangular, rhombic-triangular, oblong-triangular or ovate in outline, 3.8–10 cm long, 1.5–9 cm wide, rounded to truncate or weakly cordate and shortly decurrent onto the petiole, margins entire or remotely paucidentate or paucilobulate in lower half to coarsely sinuate-dentate with apiculate teeth, apex obtuse to acuminate, glabrous to moderately densely pubescent, 5–7-veined from base; petiole glabrous or with a few hairs on the margins near the base, exauriculate, 1.4–5.6 cm long.
Morphology Reproductive morphology Inflorescences Capitulum
Capitula discoid, many in usually dense, spreading, terminal compound corymbs, sweet-scented; involucre cylindrical, 5.5–9 mm long, 2.5–3.5 mm in diameter; bracts of calyculus 3–5, lax, oblong-linear or oblong-lanceolate, 1.5–5 mm long, obtuse, shortly ciliate at the apex or glabrous; phyllaries 8, green, 5–8.5 mm long, glabrous or hairy at apex.
Morphology Reproductive morphology Flowers Florets
Ray florets 0; disc florets 15–20, yellow or creamy yellow; corolla 6.5–9 mm long, expanded from below the middle, glabrous; lobes 1–1.9 mm long.
Morphology Reproductive morphology Fruits
Achenes 3–4 mm long, ribbed, glabrous; pappus 5–9 mm long.
Figures
Fig. 130 (page 622).
Habitat
Evergreen forest, forest margins, bamboo zone, secondary bushland in forest zone; (900–)1500–3300 m
Distribution
K1 K3 K4 K5 K6 K7 T2 T3 T6 T7 U2
[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

    • '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/

  • 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