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giant sunflower
Helianthus giganteus
Helianthus giganteus
giant sunflower Aster Family
Helianthus giganteus Asteraceae
--more--
common name
  giant sunflower
accepted scientific name
  •Helianthus giganteus L.
rules for finding collection records
  Helianthus giganteus (2163)
family name
  • Asteraceae
Image Author: ©2012 Dan Mullen
Image License: CC BY-NC-ND
Image Source

Category: Wildflowers
Flowers: Many petals
Petal colors: color
Flower size is 2. to 3. inches
Number of ray petals: 10 to 20
Leaf: Alternate, Opposite
Plant Observed 2nd week of March thru end of December

Plant Showiness (81%)
base map where plant found
mag select

Disturbed
Wetland
Grassland
Forest
Riparian
Meadow
Sand
Brush
Native Plant Status
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native Native
native Not Present