Definition

Noun: * Helianthus annuus: The scientific name for the common annual sunflower. It is a tall plant cultivated for its large, oil-rich seeds and as a forage crop. It is native to the Americas and widely grown throughout the United States and North America.

Usage

• The term "Helianthus annuus" is used in formal, scientific, and agricultural contexts to specify this particular species of sunflower, distinguishing it from other species within the genus.
• It functions as a proper noun and is typically written in italics in scientific literature.

Examples

• Scientific Classification: " belongs to the family Asteraceae."
• Agricultural Context: "The field was planted with for seed production."
• Botanical Description: "The characteristic large flower head of follows the sun."

Advanced Usage

• In taxonomic and horticultural writing, the authority who first formally described the species is sometimes appended: " L." (where "L." stands for Carl Linnaeus).

Variants and Related Words

• Common sunflower (n): The everyday name for .
• Sunflower (n): The general common name for plants in the genus , which includes as the most familiar species.
• Helianthus (n): The genus name encompassing all sunflower species.

Synonyms

• Common sunflower
• Annual sunflower

Notes

• The name is derived from Greek: (sun) and (flower), with meaning annual.
• While "sunflower" is the common term, using "" ensures precise botanical identification.

Noun

1. annual sunflower grown for silage and for its seeds which are a source of oil; common throughout United States and much of North America