Sphaeranthus senegalensis DC.

First published in Prodr. 5: 370 (1836)
This species is accepted
The native range of this species is Tropical Africa, Indian Subcontinent to Indo-China, Jawa. It is an annual and grows primarily in the seasonally dry tropical biome.

Descriptions

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/185726/140384126

Conservation
LC - least concern
[IUCN]

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]

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

Morphology General Habit
Annual herb, 0.1–1 m tall, usually well-branched, erect or decumbent; branches winged, densely puberulous to pubescent (tomentose in West Africa), the wings spinulose-dentate, puberulous and glandular.
Morphology Leaves
Leaves membranous, lanceolate, 1–10 cm long, 0.5–3.5 cm wide, base cuneate and decurrent into the wings, margins spinulose-dentate, apex acute with a spinulose tip, pubescent to puberulous (shortly lanate in West Africa), glandular.
Morphology Reproductive morphology Inflorescences
Glomerules purple, globose (rarely double) to slightly ovoid, 6–13 mm in diameter (and up to 14 or rarely 18 mm long when ovoid); peduncle 0.5–6 cm long, winged or not winged, puberulous (to tomentose in West Africa); receptacle globose or ovoid; glomerule bracts hidden by the capitula, ovate to linear, 2–4 mm long, spinulose-acute, scarious, puberulous and glandular, ciliate; capitula sessile, with 7–14 bracts, these linear to narrowly elliptic, 2–3.5 mm long, scarious, acute, pectinate-ciliate.
Morphology Reproductive morphology Flowers Florets
Florets:outer florets 4–12, tube narrowing rapidly and then filiform, 1–1.4 mm long, lobes < 0.1 mm long, style 1.3–1.7 mm long; inner florets 1–3, tube with a wide corky base narrowing rapidly in its distal half, 1.4–2 mm long, glandular proximally, lobes 0.3–0.5 mm long and glandular, anthers 1–1.2 mm long, style 2.1–3 mm long, shortly bifid.
Morphology Reproductive morphology Fruits
Achenes of outer florets ellipsoid, 0.6–0.7 mm long, puberulous, of inner florets empty, obconical, ± 1 mm long, glabrous.
Habitat
Seasonal streams, swamps and waterholes; on sand and mud, possibly an eutrophy indicator; 100–1300 m
Distribution
T3 T4 T5 T6 T7 T8 W Africa from Senegal to Nigeria, Zambia, Mozambique, Zimbabwesouthern Asia from India to China and Thailand
[FTEA]

Compositae, C. D. Adams. Flora of West Tropical Africa 2. 1963

Morphology General Habit
A branched annual herb 1-3 ft. high or half-decumbent
Morphology General Indumentum
Softly whitish-hairy
Morphology Reproductive morphology Inflorescences
Flower-heads reddish-purple about 1/3-1/2 in. across.
[FWTA]

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
  • Flora of West Tropical Africa

    • Flora of West Tropical 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/
  • 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 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