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Helianthus angustifolius
swamp sunflower Aster Family
Helianthus angustifolius Asteraceae
common names
  swamp sunflower
  swamp sneezeweed
accepted scientific name
  Helianthus angustifolius L.
rules for finding collection records
  Helianthus angustifolius (1069)
family name
Image Author: ©2005 Steven J. Baskauf
Image License: CC BY-NC-SA
Image Source Image Source Image Source
Category: Wildflowers
Flowers: Many petals
Petal colors: color
Flower size is 1. to 2. inches
Number of ray petals: 10 to 20
Leaf: Alternate, Opposite
Plant Observed last week of June thru 3rd week of November

How Likely at this Location (33%)
Name Match (100%)
Plant Showiness (63%)
base map where plant found
mag select

grid lines base