|Horticultural variety of common sunflower|
Helianthus annuus, the common sunflower, is a large annual forb of the genus Helianthus grown as a crop for its edible oil and edible fruits. This sunflower species is also used as wild bird food, as livestock forage (as a meal or a silage plant), in some industrial applications, and as an ornamental in domestic gardens. The plant was first domesticated in the Americas. Wild Helianthus annuus is a widely branched annual plant with many flower heads. The domestic sunflower, however, often possesses only a single large inflorescence (flower head) atop an unbranched stem. The name sunflower may derive from the flower's head's shape, which resembles the sun.
sun + flower
- (General American) IPA(key): /ˈsʌnˌflaʊ.ɚ/
- (Received Pronunciation) IPA(key): /ˈsʌnˌflaʊə/
- Hyphenation: sun‧flow‧er
sunflower (plural sunflowers)
- Any plant of the genus Helianthus, so called probably from the form and color of its floral head, having the form of a large disk surrounded by yellow ray flowers.
- The commonly cultivated species, Helianthus annuus, a native of America.
- A bright yellow, like that of the flower petals.
- (informal, organic chemistry) Any flat, radially