helianthus
See also: Helianthus
English
Wikispecies
![](Images/wiktionary/Sunflower_9.jpg.webp)
Helianthus annuus, a variety of sunflower
Etymology
From the genus name. Compare helio- (“sun”), antho- (“flower”).
Noun
helianthus (plural helianthuses)
- Any plant, of the genus Helianthus, having large flower heads with dark disk florets and showy yellow rays; the sunflowers