Perennial sunflowers are tall, robust plants with fibrous roots and large, rough, simple leaves on stout stems. Large, yellow, daisylike flowers bloom in September and October.
Helianthus decapetalus Ten-Petaled Sunflower
Helianthus divaricatus Woodland Sunflower
Helianthus s. 'Autumn Gold' Willowleaf Sunflower
Helianthus x 'Lemon Queen' Wood Sunflower
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