Connecticut Plants
Thin-leaved Sunflower
Helianthus decapetalus L.
  • Family: aster (Asteraceae)
  • Habitat: open woods, thickets
  • Height: 2-5 feet
  • Flower size: flowerheads 2-1/2 inches across
  • Flower color: yellow
  • Flowering time: August to October
  • Origin: native
Helianthus decapetalus L.