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Tithonia rotundifolia

(Mill.) S.F.Blake (1917)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Eudicot-Asterids Order: Asterales Family: Asteraceae Genus: Tithonia

Mexican sunflower

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Description

Key Characters:

Growth Form:

Stems:

Roots:

Leaves: Leaves simple. Alternate or rarely spiralled. Base attenuate. Margins crenate, denticulate, or palmately lobed.

Flowers:

Fruit:

Ploidy:

Habitat:

Elevation Range:

Historical Distribution

Images

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Uses and Culture

USES

Natural History

Statewide Status

Naturalized

Island Status

O'ahu Only found in cultivation
Hawai'i Naturalized

Dispersal Agents

Water/Ocean
Other Animals

Pollinators

Specimens

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Bibliography

Name Published In: Contr. Gray Herb. 52: 41 (1917)

Other References

Staples & Herbst 2005:171 (DESCR); Parker & Parsons 2016:18 (NEWNAT/H, DESCR)

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Description Recorded By Record Number Island Source Date
1 Tithonia rotundifolia Honolulu; Foster Botanic Garden In full sun in a planting box. Preserved_Specimen Erect shrub 1 m tall; ray floret ligules orange-red, disc florets orange; odorless (morning). Lau, J. 1479 Oahu BISH 1985-10-01
2 Tithonia rotundifolia Honolulu; Manoa Valley; residence of C. D. Miller Preserved_Specimen Flowers scarlet. Neal, M.C. Oahu BISH 1930-10-06
3 Tithonia rotundifolia Honolulu; Foster Botanic Garden In full sun in a planting box. Preserved_Specimen Erect shrub 1 m tall; ray floret ligules orange-red, disc florets orange; odorless (morning). Lau, J. 1479 Oahu BISH 1985-10-01
4 Tithonia rotundifolia Donkey Mill Road, North Kona. Associates: Metrosideros polymorpha, Schinus terebinthifolius, Dioscorea bulbifera, Monstera deliciosa, Momordica charantia. Preserved_Specimen Vigorous bushy, multi branched shrub about 8-10 feet tall. Alternate leaves with pointed lobes and attractive bright orange-red flower heads. Parker, J. 180 Hawaii BISH 2014-10-06
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