Comments
provided by eFloras
Tithonia rotundifolia is widely cultivated in warm climates and may persist after plantings (e.g., in Asia).
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Description
provided by eFloras
Annuals, mostly 100–200(–400) cm. Leaves: petioles 3–8 cm; blades ± deltate to pentagonal, 7–38 × 7–30 cm, sometimes 3- or 5-lobed, abaxial faces glabrous or soft-pubescent. Peduncles 11–27 cm. Phyllaries 14–21 in (2–)3 series, lanceolate to linear; outer 17–30 × 4–7.5 mm, apices acute, abaxial faces usually densely puberulent; inner 16–28 × 5–8 mm, apices rounded to acute, abaxial faces usually densely puberulent. Paleae 11.5–15 × 2–3 mm, mucros 2.5–5.5 mm. Ray florets 8–13; corollas usually orange, sometimes yellow, laminae oval to oblong, 20–33 × 6–17 mm. Disc florets 60–90. Cypselae 5–7. 2n = 34.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Distribution
provided by eFloras
A garden plant, native of Mexlco and C. America.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Elevation Range
provided by eFloras
900-2300 m
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Synonym
provided by eFloras
Tagetes rotundifolia Miller, Gard. Dict. ed. 8, Tagetes no. 4. 1768
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Derivation of specific name
provided by Flora of Zimbabwe
rotundifolia: round-leaved
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- Mark Hyde, Bart Wursten and Petra Ballings
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- Hyde, M.A., Wursten, B.T. and Ballings, P. (2002-2014). Tithonia rotundifolia (Mill.) S.F. Blake Flora of Zimbabwe website. Accessed 28 August 2014 at http://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=160470
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- Mark Hyde
- author
- Bart Wursten
- author
- Petra Ballings
Description
provided by Flora of Zimbabwe
Annual herb, up to 2(-3) m, stem often purplish. Leaves alternate; petiole 2-7 cm; lamina broadly ovate, entire or the lower 3-lobed, scabrid; base cordate; apex acuminate; margin crenate or serrate. Peduncles 1.5 cm in diameter below capitulum. Phyllaries in 2
series. Rays 2-4 cm, orange-red. Pappus of short (c.1.5 mm) free scales and 2 longer setae.
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- Mark Hyde, Bart Wursten and Petra Ballings
- bibliographic citation
- Hyde, M.A., Wursten, B.T. and Ballings, P. (2002-2014). Tithonia rotundifolia (Mill.) S.F. Blake Flora of Zimbabwe website. Accessed 28 August 2014 at http://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=160470
- author
- Mark Hyde
- author
- Bart Wursten
- author
- Petra Ballings
Frequency
provided by Flora of Zimbabwe
Common
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- Mark Hyde, Bart Wursten and Petra Ballings
- bibliographic citation
- Hyde, M.A., Wursten, B.T. and Ballings, P. (2002-2014). Tithonia rotundifolia (Mill.) S.F. Blake Flora of Zimbabwe website. Accessed 28 August 2014 at http://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=160470
- author
- Mark Hyde
- author
- Bart Wursten
- author
- Petra Ballings
Worldwide distribution
provided by Flora of Zimbabwe
Central America
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- Mark Hyde, Bart Wursten and Petra Ballings
- bibliographic citation
- Hyde, M.A., Wursten, B.T. and Ballings, P. (2002-2014). Tithonia rotundifolia (Mill.) S.F. Blake Flora of Zimbabwe website. Accessed 28 August 2014 at http://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=160470
- author
- Mark Hyde
- author
- Bart Wursten
- author
- Petra Ballings
Tithonia rotundifolia
provided by wikipedia EN
Tithonia rotundifolia,[1] the red sunflower or Mexican sunflower, is a plant in the family Asteraceae, which is native to the warmer and moister parts of North America.
Range
It occurs in Florida, Louisiana, Mexico, Central America and the West Indies. Outside its native region it is sometimes grown as an ornamental and has become naturalized in some of these locales. In Africa it has been recorded up to an altitude of 1,580 m above sea level.[2]
Description
Plants are perennial in the native habitat, up to 4 m tall with orange or red flowers. In USDA zones cooler than Zone 10 it is an annual. The flowers are used by many insects as a nectar source including migrating monarch butterflies. Leaves, despite the epithet, are deltoid to lanceolate, occasionally lobed.[3]
Monarch butterfly flying away from a Mexican sunflower
Tithonia rotundifolia covered In the first snow of fall in zone 5a
Synonyms
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Tithonia rotundifolia (Mill.) S.F. Blake, Contr. Gray Herb. 52: 41. 1917.
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Tagetes rotundifolia Miller, Gard. Dict. ed. 8, Tagetes no. 4. 1768.[4]
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Helianthus speciosus Hook., Bot. Mag. 61: t. 3295. 1834.[5]
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Tithonia speciosa (Hook.) Griseb., Cat. pl. Cub. 155. 1866.[6]
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Tithonia vilmoriniana Pamp.Tithonia vilmoriniana Pamp.
References
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^ Blake, Contributions of the Gray Herbarium 52: 41. 1917
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^ Hyde, Mark; et al. "Tithonia rotundifolia (Mill.) S.F. Blake". Flora of Zimbabwe. Retrieved 7 June 2016.
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^ Flora of North America, vol 21, p 39. 2006.
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^ Miller, Garden Dictionary ed. 8, Tagetes no. 4. 1768.
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^ Hooker, Botanical Magazine 61, t 3295. 1834.
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^ A.H.R. Griesbach. 1866. Catalogus plantarum cubensium.
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Tithonia rotundifolia: Brief Summary
provided by wikipedia EN
Tithonia rotundifolia, the red sunflower or Mexican sunflower, is a plant in the family Asteraceae, which is native to the warmer and moister parts of North America.
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- Wikipedia authors and editors
