Helianthus giganteus | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Asterales |
Family: | Asteraceae |
Genus: | Helianthus |
Species: | H. giganteus
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Binomial name | |
Helianthus giganteus | |
Synonyms[1] | |
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Helianthus giganteus, the giant sunflower or tall sunflower, is a species of Helianthus native to the eastern United States and eastern and central Canada, from Newfoundland west to Alberta south to Minnesota, Mississippi, and South Carolina.[2][3][4]
Helianthus giganteus is a perennial herbaceous plant that can grow up to 4–5 metres (13–16 ft) tall. The leaves are slender and lanceolate. The flower heads are bright yellow, up to 7 cm (3 in) in diameter. They are most commonly found in valleys with wet meadows or swamps[5][4] and even near river banks.