Tithonia diversifolia (Hemsl.) A. Gray

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Tithonia diversifolia

Photo: Bart Wursten
Domboshawa Rd, Chinamora CL

Tithonia diversifolia

Photo: Bart Wursten
Domboshawa Rd, Chinamora CL

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Synonyms: Mirasolia diversifolia Hemsl.
Common names: Mexican sunflower (English)
Frequency: Occasional
Status: Introduced
Description:
Annual or perennial herb or shrub to 3 m. Leaves alternate; petiole up to 7 cm; lamina narrowly ovate to obovate, usually deeply 3-5-lobed (rarely entire), scabrid; base cuneate; apex acuminate; margin crenate, crenate-serrate or entire. Peduncles 1 cm in diameter below capitulum. Phyllaries in c.4 series. Rays up to 6 cm, yellow. Pappus of short, 2 mm, scales, connate below, with 2 longer setae.
Notes:
Derivation of specific name: diversifolia: variable-leaved
Habitat: A weed of roadsides and waste places, much less common in Zimbabwe than Tithonia rotundifolia.
Altitude range: (metres) 870 - 1560 m
Flowering time:
Worldwide distribution: Native to eastern Mexico and Central America.
Zimbabwe distribution: C,E
Growth form(s):
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters: Display spot characters for this species
Literature:

Baumann, G. (2005). Photographic Guide to Wildflowers of Malawi Wildlife and Environmental Society of Malawi Pages 170 - 171. (Includes a picture).

Drummond, R.B. (1975). A list of trees, shrubs and woody climbers indigenous or naturalised in Rhodesia. Kirkia 10(1) Page 278.

Strugnell, A.M. (2006). A Checklist of the Spermatophytes of Mount Mulanje, Malawi Scripta Botanica Belgica 34 National Botanic Garden of Belgium Page 59.

Wild, H. (1967). The Compositae of the Flora Zambesiaca area. 1. Heliantheae. Kirkia 6(1) Page 56.


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Other sources of information about Tithonia diversifolia:

Our websites:

Flora of Malawi: Tithonia diversifolia
Flora of Mozambique: Tithonia diversifolia
Flora of Zambia: Tithonia diversifolia

External websites:

African Plant Database: Tithonia diversifolia
Biodiversity Explorer (Biodiversity of southern Africa): Tithonia diversifolia
EOL (Encyclopedia of Life): Tithonia diversifolia
ePIC (electronic Plant Information Center): Tithonia diversifolia
Flora Zambesiaca web site: Tithonia diversifolia
Google: Web - Images - Scholar
GRIN (Germplasm Resources Information Network) taxonomy for plants report for Tithonia diversifolia
IPNI (International Plant Names Index): Tithonia diversifolia
Ispot Southern Africa : Tithonia diversifolia
JSTOR Plant Science: Tithonia diversifolia
Kew Herbarium catalogue: Tithonia diversifolia
Tropicos: Tithonia diversifolia
West African Plants database: Tithonia diversifolia


Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2002-16

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2016). Flora of Zimbabwe: Species information: Tithonia diversifolia.
http://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=160460, retrieved 24 July 2016

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