Tithonia

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Tithonia
Tithonia diversifolia.JPG
Tithonia diversifolia
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Subfamily: Asteroideae
Tribe: Heliantheae
Subtribe: Helianthinae
Genus: Tithonia
Desf. ex Juss. 1789 not Kuntze 1891 (Phytolaccaceae) [1]
Synonyms [2] [3]
  • UrbanisolKuntze
  • Mirasolia(Sch.Bip.) Benth.
  • Tithonia sect. Mirasolia(Sch.Bip.) La Duke

Tithonia is a genus of flowering plants in the tribe Heliantheae within the family Asteraceae. [4] [5]

Tithonia has a center of distribution in Mexico but with one species extending into the Southwestern United States and several native to Central America. Two species, T. diversifolia and T. rotundifolia , are widely cultivated and have escaped to become weeds in tropical and subtropical areas around the world. T. rotundifolia makes a nice fresh cut flower, flowering in mid- to late-summer in the Northern hemisphere. [6] The distinguishing feature of the genus is the peduncle, which is fistulose (meaning hollow and flaring toward the apex). The plants are coarse annual or perennial herbs or shrubs, and one species, T. koelzii , is a small tree. [7]

Species [2] [8] [9]
Formerly included [2]

see Comaclinium Enceliopsis Lasianthaea Viguiera

Mexican sunflower
Tithonia rotundifolia Mexican Sunflower Tithonia rotundifolia Flower 2163px.jpg
Mexican sunflower
Tithonia rotundifolia
Tithonia tubaeformis Tithonia tubaeformis (Asteraceae) en un prado de Guanajuato, Mexico.jpg
Tithonia tubaeformis

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  3. Amoreuxia palmatifidaMoc. & Sessé ex DC. – Mexican yellowshow - Mexico, Central America, Colombia, Arizona, New Mexico
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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.

This is a list of plants found in the Sierra de Manantlán Biosphere Reserve. The reserve straddles the Mexican states of Colima and Jalisco. It is located in the transition between the Nearctic and Neotropical realms and encompasses parts of the Sierra Madre del Sur, with a wide range of altitudes, climates and soils. The effects of tectonic and volcanic activities and erosion are notable within the reserve.

References

  1. "Tropicos, search for "Tithonia"". Tropicos.org. Retrieved 2018-08-31.
  2. 1 2 3 Flann, C (ed) 2009+ Global Compositae Checklist Archived 2014-11-06 at archive.today
  3. "Tithonia Desf. ex Juss". Germplasm Resources Information Network. United States Department of Agriculture. 1996-09-17. Retrieved 2010-06-06.
  4. Jussieu, Antoine Laurent de. 1789. Genera Plantarum 189 in Latin
  5. "Tropicos, "Tithonia" Desf. ex Juss". Tropicos.org. Retrieved 2018-08-31.
  6. "Growing Tithonia (Mexican Sunflower) from Seed | Johnny's Selected Seeds". www.johnnyseeds.com. Retrieved 2020-08-31.
  7. "Flora of North America, Vol. 21 Page 138, Sunflowerweed, "Tithonia" Desfontaines ex Jussieu, Gen. Pl. 189. 1789". Efloras.org. Retrieved 2018-08-31.
  8. "Tithonia". Integrated Taxonomic Information System . Retrieved 6 June 2010.
  9. "Species Records of Tithonia". Germplasm Resources Information Network. United States Department of Agriculture. Retrieved 2010-06-06.