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This species is accepted, and its native range is Tropical & S. Africa.
Crassocephalum picridifolium (DC.) S. Moore

[FWTA]

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

Morphology General Habit
A scrambling or erect herb up to 2 ft. high
Ecology
In damp open ground
Morphology Reproductive morphology Inflorescences
Usually several flower-heads over 1/2 in. long
Morphology Reproductive morphology Flowers Florets
Florets golden-yellow.

[FTEA]

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

Morphology General Habit
Perennial herb 30–120 cm long or high or scrambling to 180 cm, erect or with the lower stem prostrate and rooting at the nodes, sending up erect branches, sometimes clambering through other plants; stems green or streaked or tinged with purplish, red or brownish-red, glabrous to densely setulose with red hairs.
Morphology Leaves
Leaves obovate, oblanceolate, elliptic, lanceolate or ovate, sometimes distinctly pinnately or pinnato-lyrately 2–8-lobed in lower half, 3–15.5 cm long, 0.5–9 cm wide, sessile or cuneate to attenuate into a usually auriculate petioloid base, margins sinuate-dentate or sinuate-serrate to deeply sinuate-lobulate, especially towards the base, apex obtuse to acute, sometimes somewhat attenuate, pubescent, sometimes also setulose on veins beneath, sometimes ± glabrescent.
Morphology Reproductive morphology Inflorescences Capitulum
Capitula 1–5, terminal, lax, discoid, long-stalked; stalks of the individual capitula pubescent; involucre cylindrical, 9–13 mm long, 4–8 mm in diameter, the base wide and truncate; bracts of calyculus linear to lanceolate, 8–15, dark-tipped, 2.5–8 mm long, pubescent or at least ciliate-margined; phyllaries 13–27, usually 21, green with purplish or brownish tips, 8–13 mm long, pubescent or densely glandular, sometimes with the hairs tinged purplish, or rarely glabrous.
Morphology Reproductive morphology Flowers Florets
Disc florets very many, yellow, orange-yellow or orange; corolla 7.2–11.5 mm long, tube glabrous, gradually expanded above the middle, lobes 0.7–1.7 mm long.
Morphology Reproductive morphology Fruits
Achenes 1.5–2.5 mm long, ribbed, shortly hairy between the ribs; pappus 7–12 mm long.
Figures
Fig. 127 (page 605).
Habitat
Swamps or swampy grassland; may be locally common or even mat-forming; (450–)1050–2700 m
Distribution
K1 K3 K4 K5 K6 K7 T1 T2 T3 T4 T5 T6 T7 T8 W Africa from Gambia to Cameroon, Congo (Kinshasa), Sudan, Ethiopia, and S to South Africa

Native to:

Angola, Botswana, Cape Provinces, Chad, Ethiopia, Guinea-Bissau, Gulf of Guinea Is., KwaZulu-Natal, Mali, Mauritania, Mozambique, Namibia, Northern Provinces, Senegal, Sudan, Swaziland, Zambia, Zimbabwe

English
Water thickhead

Crassocephalum picridifolium (DC.) S.Moore appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Jan 1, 2004 Etuge, M. [4730], Cameroon K000746677
Eggeling, W.J. [5831], Uganda 10648.000
Wiltshire, F.M. [19], Kenya 4740.000
Wild, H. [40089], Zimbabwe 8654.000
Harvey [s.n.], South Africa K000306745
Drege [s.n.], South Africa K000306746 Unknown type material
Drege [s.n.], South Africa K000306747 Unknown type material
Mwangulango, N.A. [1061], Tanzania K000614884
Rwaburindore, P.K. [4552], Uganda K000438235
Coombe, D.E. [76], Nigeria K000453539
Patel, H. [7310], Mozambique Senecio picridifolius K000613572

First published in J. Bot. 50: 212 (1912)

Accepted by

  • Roskov Y. & al. (eds.) (2018). Species 2000 & ITIS Catalogue of Life Naturalis, Leiden, the Netherlands.

Literature

Flora of West Tropical Africa

  • in J. Bot. 50: 212 (1912).

Flora of Tropical East Africa

  • Agnew, A.D.Q. & Agnew, S., Upland Kenya Wild Flowers, ed. 2: 220, t. 92 (1994).
  • Blundell, Wild Flow. E. Afr.: fig. 362 (1987).
  • C. Jeffrey in Kew Bulletin 41: 906 (1986).
  • F. W. Andr., The Flowering Plants of the Sudan 3: 21 (1956).
  • Hilliard, Comp. Natal: 369, fig. 13 (1977).
  • Lisowski, Aster. Fl. Afr. Centr. 2: 336, t. 73 (1991).
  • Maquet in Fl. Rwanda 3: 652 (1985).
  • S.Moore in Journal of Botany 50: 212 (1912).

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/

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Plants and People Africa
Common Names from Plants and People Africa http://www.plantsandpeopleafrica.com/
© Plants and People Africa http://www.plantsandpeopleafrica.com http://creativecommons.org/licenses/by/3.0/