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Common Sunflower is a tall, fast-growing annual with broad, oval to heart-shaped, roughly hairy leaves. In summer, it produces huge, brilliant flowers, up to 12 in. across (30 cm), with yellow petals surrounding a dark chocolate central disk. Borne on stiff upright stalks, the flower heads tend to follow the sun from morning to night. Attractive to bees, their central disk gives way to sunflower seeds that provide food for birds in fall and winter.
Description from gardenia.net
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