Wild, H. (1967)
The Compositae of the Flora Zambesiaca area. 1. Heliantheae. Kirkia 6(1) 1-62
Description of the genus
Annual or perennial herbs. Leaves
opposite. Capitula solitary on long peduncles, radiate,
heterogamous. Ray florets female, fertile; disk bisexual and
fertile. Involucre ± hemispheric. Phyllaries in 2 series,
the outer shorter than or equal to the inner. Rays present,
3-lobed or dentate; disk florets cylindric, 5-lobed. Receptacular
scales linear, ± keeled. Achenes silky-villous. Pappus
of numerous densely plumose bristles.
Flora of Botswana: Tridax Flora of Burundi: Tridax Flora of the DRC: Tridax Flora of Malawi: Tridax Flora of Mozambique: Tridax Flora of Rwanda: Tridax Flora of Zambia: Tridax Flora of Zimbabwe: Tridax
External websites:
African Plants: A Photo Guide (Senckenberg): Tridax BHL (Biodiversity Heritage Library): Tridax EOL (Encyclopedia of Life): Tridax GBIF (Global Biodiversity Information Facility): Tridax Google: Web - Images - Scholar iNaturalist: Tridax IPNI (International Plant Names Index): Tridax JSTOR Plant Science: Tridax Mansfeld World Database of Agricultural and Horticultural Crops: Tridax Plants of the World Online: Tridax Tropicos: Tridax Wikipedia: Tridax