Flaveria trinervia (Spreng.) C. Mohr

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Flaveria trinervia

Photo: Bart Wursten
Nr bridge over Sitagane River, by rd from Tuli to Hwali River bridge

Flaveria trinervia

Photo: Bart Wursten
Nr bridge over Sitagane River, by rd from Tuli to Hwali River bridge

Flaveria trinervia

Photo: Mark Hyde
Princess Drive, Highlands, Harare

Flaveria trinervia

Photo: Mark Hyde
Princess Drive, Highlands, Harare

Flaveria trinervia

Photo: Mark Hyde
Princess Drive, Highlands, Harare

Flaveria trinervia

Photo: Mark Hyde
Princess Drive, Highlands, Harare

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Species details: Click on each item to see an explanation of that item (Note: opens a new window)

Synonyms: Flaveria australasica sensu Wild
Oedera trinervia Spreng.
Common names: Gaika weed (English)
Frequency:
Status: Introduced
Description:
Much-branched erect or procumbent annual herb, usually up to 75 cm tall, rarely taller. Branches opposite, often pinkish-red, mostly hairless. Leaves opposite, yellowish-green, narrowly elliptic to oblanceolate, 1-7.5 cm long, 3-veined from the base, narrowing at the base into a pseudo-petiole; margin more or less finely toothed. Capitula numerous in congested axillary and terminal heads, yellow with very short ray-florets, 0.5-1 mm long.
Notes:
Derivation of specific name: trinervia: 3-veined
Habitat: In waste ground and disturbed places, around margins of dams and lakes and as a weed of cultivation.
Altitude range: (metres) Up to 1500 m
Flowering time:
Worldwide distribution: Native to tropical America. Now a pantropical weed.
Zimbabwe distribution: N,W,C,E,S
Growth form(s):
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters: Display spot characters for this species
Images last updated: Wednesday 3 January 2018
Literature:

Beentje, H.J. & Ghazanfar, S.A. (eds.) (2005). Compositae (Part 3) Flora of Tropical East Africa Pages 724 - 725. (Includes a picture).

Mapaura, A. & Timberlake, J. (eds) (2004). A checklist of Zimbabwean vascular plants Southern African Botanical Diversity Network Report No. 33 Sabonet, Pretoria and Harare Page 25.

Phiri, P.S.M. (2005). A Checklist of Zambian Vascular Plants Southern African Botanical Diversity Network Report No. 32 Page 30.

Pickering, H. & Roe, E. (2009). Wild Flowers of the Victoria Falls Area Helen Pickering, London Page 37. (Includes a picture).

Pope, G.V. (1975). The Compositae of the Flora Zambesiaca area. 6. Helenieae. Kirkia 10(1) Pages 111 - 113. (Includes a picture).

Wild, H. (1955). Common Rhodesian Weeds Government of Rhodesia, Salisbury Page 69. As Flaveria australasica (Includes a picture).


Other sources of information about Flaveria trinervia:

Our websites:

Flora of Caprivi: Flaveria trinervia
Flora of Mozambique: Flaveria trinervia
Flora of Zambia: Flaveria trinervia

External websites:

African Plants: A Photo Guide (Senckenberg): Flaveria trinervia
African Plant Database: Flaveria trinervia
BHL (Biodiversity Heritage Library): Flaveria trinervia
EOL (Encyclopedia of Life): Flaveria trinervia
GBIF (Global Biodiversity Information Facility): Flaveria trinervia
Google: Web - Images - Scholar
iNaturalist: Flaveria trinervia
IPNI (International Plant Names Index): Flaveria trinervia
JSTOR Plant Science: Flaveria trinervia
Mansfeld World Database of Agricultural and Horticultural Crops: Flaveria trinervia
Plants of the World Online: Flaveria trinervia
Tropicos: Flaveria trinervia
Wikipedia: Flaveria trinervia


Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2002-24

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2024). Flora of Zimbabwe: Species information: Flaveria trinervia.
https://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=160760, retrieved 12 December 2024

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