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Swamp Sunflower

Swamp sunflower, Helianthus angustifolius

Flowers have 8-21 yellow petals with a reddish or purplish-brown center disk.



  • Flower Size: 1.5 - 3 inches

  • Other Names: Narrow Leaf Sunflower, Narrow-Leaved Coreopsis, Sunflower

  • Plant Height: 1 - 8 feet

  • Scientific Name: Helianthus angustifolius

  • Flower Color: Yellow

  • Bloom Time: September, October

  • Petal: Many

  • Leaf: Alternate, Hairy

  • Stem: Branched, Hairy, Rough

  • Environment: Part Shade, Sun, Wet

  • Location: Shiloh Greenway

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