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Tall Sunflower (Helianthus giganteus)
Image ID: 2018/ar135LTap/mouseover and drag to zoom/pan.
Other common names: Giant Sunflower
Family: Asteraceae (Sunflower)
Height: 3 to 12 ft.
Blooms: July to October
Leaf Type: toothed
Bloom Size: 2.5 in. (typical)
Flower Description: Individual flowers, Regular blooms, 10 or more parts
Location: Allegheny River Trail
Notes: Reddish stem.
More photos of this flower
We started out as wildflowers from the bicycle trails of western Pennsylvania, but we've grown!