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Flaveria trinervia
Selected images: Click on each image to see a larger version and details of the record View all images (14)
Photo: Bart Wursten
Nr bridge over Sitagane River, by rd from Tuli to Hwali River bridge
Photo: Bart Wursten
Nr bridge over Sitagane River, by rd from Tuli to Hwali River bridge
Photo: Mark Hyde
Princess Drive, Highlands, Harare
Photo: Mark Hyde
Princess Drive, Highlands, Harare
Photo: Mark Hyde
Princess Drive, Highlands, Harare
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 trinerviaFlora of Mozambique: Flaveria trinervia
Flora of Zambia: Flaveria trinervia
External websites:
African Plants: A Photo Guide (Senckenberg): Flaveria trinerviaAfrican 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
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