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:
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 than Tithonia rotundifolia.
Altitude range: (metres) 870 - 1560 m
Flowering time:
Worldwide distribution: C America
Zimbabwe distribution: C,E
Growth form: PS
Endemic status:
Red data list status:
Insects (whose larvae eat this species):
Spot characters: Display spot characters for this species
Literature:

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Other sources of information about Tithonia diversifolia:

Flora of Mozambique: Tithonia diversifolia
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
JSTOR Plant Science: Tithonia diversifolia
Kew Herbarium catalogue: Tithonia diversifolia
Tropicos: Tithonia diversifolia
West African Plants database: Tithonia diversifolia


Copyright: Mark Hyde, Bart Wursten and Petra Ballings, 2002-13

Hyde, M.A., Wursten, B.T. & Ballings, P. (2013). Flora of Zimbabwe: Species information: Tithonia diversifolia.
http://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=160460, retrieved 21 May 2013

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