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giant sunflower
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 (1697)
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 beginning of July thru 2nd week of October

How Likely at this Location (34%)
Name Match (100%)
Plant Showiness (81%)
base map where plant found
mag select

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

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