Helianthus annuus L.

English: Sunflower

German: Sonnenblume

Mandarin: 向日葵 (xiang ri kui)

Portuguese: Girassol

Kingdom: Plantae (2659)

  Phylum: Tracheophyta (2572)

    Class: Magnoliopsida (2167)

      Order: Asterales (224)

        Family: Asteraceae (223)(family description)

          Genus: Helianthus (1)

            Epithet: annuus L. (3)

Synonyms: Helianthus annuus B.Boivin, Helianthus aridus Rydb., Helianthus cultus Wenzlaff, Helianthus erythrocarpus Bartl., Helianthus grandiflorus Wender. ex Steud., Helianthus indicus L., Helianthus jaegeri Heiser, Helianthus lenticularis Douglas, Helianthus macrocarpus DC., Helianthus multiflorus Hook., Helianthus ovatus Lehm., Helianthus petiolaris hort., Helianthus platycephalus Cass., Helianthus pumilus Pers., Helianthus ruderalis Wenzlaff, Helianthus tubaeformis Nutt., Helianthus ultiflorus L.

annuus => yearly, annual, lasting a year, within a year

grandiflorus => with flowers larger than the normal

indicus => of Indian origin

macrocarpus => bearing large fruit

multiflorus => many flowered

ovatus => oval, egg-shaped; elliptic, but broader at the base

petiolaris => having petioles, not sessile, distinctly petiolate

ruderalis => of waste places, of rubbish tips

Climate: sub-tropical

Habitat: mesophytic

Habit: herb

Flower colour: yellow

Check for Helianthus annuus at

World Flora Online, GBIF or IPNI

• [954] Helianthus annuus - Plants For A Future
• [1024] Helianthus annuus - Pacific Island Ecosystems at Risk (PIER)