Tithonia
| Tithonia | |
|---|---|
| File:Tithonia diversifolia.JPG | |
| Tithonia diversifolia | |
Scientific classification 
| |
| 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] | |
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
[edit | edit source]Plants of the World Online includes:[8][2][9][10]
- Tithonia brachypappa B.L.Rob. - San Luis Potosí
- Tithonia calva Sch.Bip. - Durango, Sinaloa
- Tithonia diversifolia (Hemsl.) A.Gray – tree marigold - Mexico, Central America; naturalized in Asia, Australia, Africa, South America, Florida, Texas, various oceanic islands
- Tithonia fruticosa Canby & Rose - Chihuahua, Durango, Sonora, Sinaloa
- Tithonia hondurensis La Duke - Belize, Honduras
- Tithonia koelzii McVaugh - Jalisco
- Tithonia longiradiata (Bertol.) S.F.Blake - Mexico, Central America (synonym T. pittieri (Greenm.) S.F.Blake)
- Tithonia paneroi (B.L.Turner) E.E.Schill. & Panero
- Tithonia pedunculata Cronquist - Oaxaca
- Tithonia rotundifolia (Mill.) S.F.Blake - Mexico, Central America; naturalized in Florida, Louisiana, South America (synonym T. tagetiflora Desf.)
- Tithonia thurberi Gray – Arizona sunflower weed - Chihuahua, Sonora, Arizona (Pima County)
- Tithonia tubaeformis (Jacq.) Cass. - Mexico, Central America; naturalized in Argentina (synonym T. helianthoides Bernh.)
Formerly included
[edit | edit source]see Comaclinium, Enceliopsis, Lasianthaea, Viguiera[2]
- Tithonia angustifolia - Viguiera angustifolia
- Tithonia argophylla - Enceliopsis argophylla
- Tithonia decurrens - Viguiera decurrens
- Tithonia excelsa - Viguiera excelsa
- Tithonia ovata - Lasianthaea helianthoides
- Tithonia pusilla - Viguiera pusilla
- Tithonia splendens - Comaclinium montanum
Tithonia rotundifolia
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References
[edit | edit source]- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b c Flann, C (ed) 2009+ Global Compositae Checklist Archived 2014-11-06 at archive.today
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Jussieu, Antoine Laurent de. 1789. Genera Plantarum 189 in Latin
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Plants of the World Online: Tithonia Desf. ex Juss. (retrieved 14 August 2023)
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- La Duke, J. C. 1982. Revision of Tithonia. Rhodora 84: 453–522.
External links
[edit | edit source]- Error creating thumbnail: File missing Media related to Lua error in Module:Commons_link at line 62: attempt to index field 'wikibase' (a nil value). at Wikimedia Commons
- File:Wikispecies-logo.svg Data related to Tithonia at Wikispecies
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