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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 (1039)
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 last week of June thru 2nd week of October
How Likely at this Location (30%)
Name Match (100%)
Plant Showiness (81%)
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