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Helianthus annuus

L. (1753)

This name is accepted

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

sunflower

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Description

Key Characters:

Growth Form:

Stems:

Roots: Roots a tap root.

Leaves: Leaves simple. Alternate or opposite. Blades cordate or ovate Base cordate, cuneate (wedge-shaped), or subcordate. Margins serrate/dentate or subentire.

Flowers:

Fruit:

Ploidy:

Habitat:

Elevation Range:

Historical Distribution

Synonyms (53)

Helianthus annuus californicus T.Moore (1860)
Helianthus annuus f. fallax B.Boivin (1960)
Helianthus annuus f. lenticularis (Douglas ex Lindl.) B.Boivin (1960)
Helianthus annuus f. silvester Thell. (1919)
Helianthus annuus mut. inornatus Cockerell (1929)
Helianthus annuus subsp. jaegeri (Heiser) Heiser (1955)
Helianthus annuus subsp. lenticularis (Douglas ex Lindl.) Cockerell (1914)
Helianthus annuus subsp. texanus Heiser (1954)
Helianthus annuus var. apicalis Cockerell (1918)
Helianthus annuus var. aridus Cockerell (1915)
Helianthus annuus var. basalis Cockerell (1918)
Helianthus annuus var. californicus (T.Moore) Bushell (1861)
Helianthus annuus var. chrysanthemoides Cockerell (1915)
Helianthus annuus var. convolutus Cockerell (1918)
Helianthus annuus var. coronatus Cockerell (1915)
Helianthus annuus var. dilutus Cockerell (1918)
Helianthus annuus var. flavobasis Cockerell (1918)
Helianthus annuus var. indicus (L.) DC. (1836)
Helianthus annuus var. latibasis Cockerell (1918)
Helianthus annuus var. lenticularis (Douglas ex Lindl.) Steyerm. (1960)
Helianthus annuus var. macrocarpus (DC.) Cockerell (1915)
Helianthus annuus var. niger Cockerell (1914)
Helianthus annuus var. pallescens Cockerell (1918)
Helianthus annuus var. passiflora Cockerell (1918)
Helianthus annuus var. primulinus Cockerell (1913)
Helianthus annuus var. pumilus DC. (1836)
Helianthus annuus var. reversus Cockerell (1918)
Helianthus annuus var. revolutus Cockerell (1918)
Helianthus annuus var. ruberrimus Cockerell (1914)
Helianthus annuus var. selene Cockerell (1914)
Helianthus annuus var. semivinosus Cockerell (1918)
Helianthus annuus var. texanus (Heiser) Shinners (1964)
Helianthus annuus var. tortuosus Cockerell (1913)
Helianthus annuus var. trizonatus Cockerell (1918)
Helianthus annuus var. vinosissimus Cockerell (1914)
Helianthus annuus var. vinosus Cockerell (1913)
Helianthus aridus Rydb. (1905)
Helianthus aridus var. citrinus Cockerell (1914)
Helianthus erythrocarpus Bartl. (1840)
Helianthus grandiflorus Wender. ex Steud. (1840)
Helianthus indicus L. (1767)
Helianthus jaegeri Heiser (1948)
Helianthus lenticularis Douglas ex Lindl. (1829)
Helianthus lenticularis var. angustus Cockerell (1915)
Helianthus lenticularis var. aridus Cockerell (1915)
Helianthus lenticularis var. primulinus Cockerell (1914)
Helianthus lindheimerianus Scheele (1849)
Helianthus macrocarpus DC. (1836)
Helianthus ovatus Lehm. (1828)
Helianthus petiolaris DC. (1836)
Helianthus platycephalus Cass. (1821)
Helianthus pumilus Pers. (1807)
Helianthus ultiflorus L. (1753)

Uses and Culture

USES

Natural History

Statewide Status

Naturalized

Island Status

Maui Naturalized
Hawai'i Naturalized

Dispersal Agents

Water/Ocean
Birds
Other Animals

Pollinators

Specimens

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Bibliography

Name Published In: Sp. Pl.: 904 (1753)

Other References

Wagner et al. 1990:322 (H); Staples & Herbst 2005:150 (KEY), 161 (DESCR); Oppenheimer & Pezzillo 2024:57 (WM)

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Description Recorded By Record Number Island Source Date
1 Helianthus annuus Mauna Loa Preserved_Specimen 6 feet tall. Annual; flowers 3.5/4 inches in diameter, rays orange, center brown. Uehara, S. Hawaii BISH 1963-08-01
2 Helianthus annuus USA hawaiian islands, west maui, wailuku district Preserved_Specimen 250 ft, a few plants, 1.5m on shady bank west side of Hono'a 'pi;ilani highway under samanea with urochloa, amaranthus, and other weeks. Oppenheimer, H.L. Maui BISH 2021-03-31
3 Helianthus annuus Hawaii Preserved_Specimen Adee, K.T. Hawaii BISH 1978-05-25
4 Helianthus annuus Pohakuloa Occasional in open woodland of Sophora, Myoporum, and Chenopodium. Preserved_Specimen Erect clumps 1 m tall; disk brown, rays bright yellow. Fosberg, F.R. 42165 Hawaii BISH 1961-09-11
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