Helianthus giganteus

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Helianthus giganteus
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Genus: Helianthus
Species: H. giganteus
Binomial name
Helianthus giganteus
L.

Helianthus giganteus (giant sunflower or tall sunflower), is a species of Helianthus native to the eastern United States and southeastern Canada, from Nova Scotia and Ontario west to Minnesota and south to Mississippi and Georgia.[1]

It is a perennial herbaceous plant growing up to 4 m tall. The leaves are slender, lanceolate. The flower heads are bright yellow, up to 7 cm diameter. They are most commonly found in valleys with wet meadows or swamps.[2]

References

  1. Germplasm Resources Information Network: Helianthus giganteus
  2. Wisconsin Plant of the Week: Helianthus giganteus
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