- Helianthus giganteus
Taxobox
name = "Helianthus giganteus"
image_width = 240px
image_caption =
regnum =Plantae
division = Magnoliophyta
classis =Magnoliopsida
ordo =Asterales
familia =Asteraceae
genus = "Helianthus "
species = "H. giganteus"
binomial = "Helianthus giganteus"
binomial_authority = L."Helianthus giganteus" (Giant Sunflower or Tall Sunflower), is a species of "
Helianthus " native to the easternUnited States and southeasternCanada , fromNova Scotia andOntario west toMinnesota and south toMississippi and Georgia.Germplasm Resources Information Network: [http://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?27927 "Helianthus giganteus"] ]It is a perennial
herbaceous plant growing up to 4 m tall. The leaves are slender, lanceolate. Theflower heads are bright yellow, up to 7 cm diameter. They are most commonly found in valleys with wet meadows or swamps.Wisconsin Plant of the Week: [http://www.klines.org/joanne/Archive/Plant_Pages/plant_pages_41.html "Helianthus giganteus"] ]References
Wikimedia Foundation. 2010.