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Helianthus giganteus

Helianthus giganteus

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Asterids
Cladus: Campanulids
Ordo: Asterales

Familia: Asteraceae
Subfamilia: Asteroideae
Tribus: Heliantheae
Subtribus: Helianthinae
Genus: Helianthus
Species: Helianthus giganteus
Name

Helianthus giganteus L.
Synonyms

Helianthus alienus E. E. Wats.
Helianthus altissimus L.
Helianthus angustifolius subsp. giganteus (L.) Anashchenko
Helianthus borealis E. E. Wats.
Helianthus carolinianus Hill
Helianthus crinitus Steud.
Helianthus giganteus subsp. alienus (E. E. Wats.) R.W. Long
Helianthus giganteus var. subtuberosus Britt.
Helianthus gigas Michx.
Helianthus nuttallii var. subtuberosus (Britt.) B. Boivin
Helianthus subtuberosus (Britt.) Bourg. ex A. Gray
Helianthus validus E. E. Wats.
Helianthus virgatus Lam.

Distribution
Native distribution areas:

Continental: Northern America
Canada (New Brunswick, Newfoundland, Nova Scotia, Ontario, Quebec), USA (Connecticut, Delaware, District of Columbia, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, New Jersey, New York, North Carolina, Ohio, Pennsylvania, South Carolina, Tennessee, Vermont, Virginia, West Virginia, Wisconsin)

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition
References

Linnaeus, C. 1753. Species Plantarum. Tomus II: 905. Reference page.

Links

International Plant Names Index. 2018. Helianthus giganteus. Published online. Accessed: Feb. 07 2018.
The Plant List 2013. Helianthus giganteus in The Plant List Version 1.1. Published on the internet. Accessed: 2018 Feb. 07.
Tropicos.org 2018. Helianthus giganteus. Missouri Botanical Garden. Published on the internet. Accessed: 2018 Feb. 07.
Hassler, M. 2018. Helianthus giganteus. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2018. Species 2000 & ITIS Catalogue of Life. Published on the internet. Accessed: 2018 Feb. 07. Reference page.
USDA, ARS, Germplasm Resources Information Network. Helianthus giganteus in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 07-Oct-06.

Vernacular names
English: Giant or tall sunflower

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]
Description

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.
References

"Helianthus giganteus". The Global Compositae Checklist (GCC) – via The Plant List.
"Helianthus giganteus". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA). Retrieved 14 January 2018.
"Helianthus giganteus". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). 2014.
Schilling, Edward E. (2006). "Helianthus giganteus". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). Vol. 21. New York and Oxford – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Wisconsin Plant of the Week: Helianthus giganteus

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