Red Sunflower
മെക്സിക്കൻ സൂര്യകാന്തി
Tithonia rotundifolia (Mill.) S.F.Blake
- light
- Full sun
- water
- Little
- tall
- 1.4 m
- wide
- 76 cm
Asteraceae
Also called Mexican Sunflower, Red Mexican Sunflower, Clavel de muerto
Formerly Helianthus speciosus, Leighia speciosa, Tagetes rotundifolia, Tithonia aristata, and 10 more
When it flowers
Flowers December to June in the tropics.
Read from iNaturalist photographs of it in flower. A month counts at 50% of the best month's flowering share (smoothed over three months) and 10% of its flowering count, from at least 100 flowering observations in the band.
If a child, a pet or anyone may have eaten a plant, contact a doctor or vet straight away, or call the National Poisons Information Centre (AIIMS, New Delhi) on 1800 116 117, free and open 24 hours.
Something wrong with it?About it
- Grows as
- AnnualKew's checklist, not yet checked
- Climate
- Seasonally dry tropicalKew's checklist, not yet checked
- Wild in
- Mexico to C. AmericaKew's checklist, not yet checked
- Light
- Full sun (6 h or more)Read from NC State Extension, one source
- Height
- 91 cm to 1.8 mRead from NC State Extension, one source
- Spread
- 61 cm to 91 cmRead from NC State Extension, one source
- Water
- Little: takes droughtRead from NC State Extension, one source
- Flowers
- Yellow, orange, redRead from NC State Extension, one source
Not known yet: coldest it survives, heat, hottest it survives.
Grow it with
Suggested by a rule, not by a gardener: same climate (kew), flowering when this plant does not (inaturalist), and a different shape.
AcerolaFlowers July to November, when this does not
Arabian jasmineFlowers July to November, when this does not
Barbados gooseberryFlowers July to November, when this does not
Barbados lilyFlowers July to November, when this does not
Black-eyed Susan vineFlowers July to November, when this does not
Blue dazeFlowers July to November, when this does not
In other languages (12)
- root
- ācāhualli
- Spanish
- acahual rojo, Escopeta
- Japanese
- メキシコヒマワリ
- Chinese (China)
- 圆叶肿柄菊
- Swedish
- inkakrage
- Afrikaans
- Rooisonneblom
- Russian
- Титония круглолистная
- Thai
- ทานตะวันเม็กซิโก
- Lithuanian
- Apskritalapė titonija
- Chinese
- 圓葉腫柄菊, 万寿花肿柄菊, 圆叶肿柄菊
- Finnish
- oranssititonia
- Slovak
- titonia okrúhlolistá
Where this comes from
- iNaturalist, read 2026-10-26, CC0-1.0 (observation counts)
- Wikidata, read 2026-10-26, CC0-1.0
- Kew's checklist, read 2026-10-24, CC-BY-4.0
- NC State Extension, read 2026-10-25, fact, cited
- iNaturalist, read 2026-10-26, CC BY
- iNaturalist, read 2026-10-26, CC BY
- iNaturalist, read 2026-10-26, CC BY-SA
- iNaturalist, read 2026-10-26, CC BY
- 3D model: Tithonia rotundifolia (built for Vanagrha) by Vanagrha, own
A fact “checked by a majority of its sources” was settled by a vote of the pages it was read from, not by a person reading it; one marked “one source” rests on that page alone. Anything else not marked checked has not been checked yet. Where nothing is known, the page says so rather than guess.