Helianthus floridanus is a species of sunflower known by the common name Florida sunflower. It is native to the southeastern United States, found in all the coastal states from Alabama to North Carolina, plus Louisiana.[1]

Helianthus floridanus
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Helianthus
Species:
H. floridanus
Binomial name
Helianthus floridanus

Helianthus floridanus is a perennial sometimes as much as 200 cm (almost 7 feet) tall, spreading by means of underground rhizomes. Leaves are long and narrow, up to 15 cm (6 inches) long. It is a perennial herb sometimes as much as 150 cm (5 feet) tall. One plant can produce as many as 6 flower heads, each with 10-20 yellow ray florets surrounding as least 90 red, purple, or yellow disc florets. The species grows in sandy, open areas at low elevations, often near the coast.[2][3]

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