Tim Fitzharris / Common Sunflower (Helianthus annuus) group showing symmetrical seed heads, North America
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Yva Momatiuk & John Eastcott / Common Sunflower (Helianthus annuus) flowers and Large-leaved Lupine (Lupinus polyphyllus) in summer, Pryor Mountain, Montana
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Jim Brandenburg / Common Sunflower (Helianthus annuus), South Dakota
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Hiroya Minakuchi / Common Sunflower (Helianthus annuus) flowers, Japan
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Hiroya Minakuchi / Common Sunflower (Helianthus annuus) flowers, Japan
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Hiroya Minakuchi / Common Sunflower (Helianthus annuus) flowers, Japan
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Hiroya Minakuchi / Common Sunflower (Helianthus annuus), Yamanashi, Japan
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Luciano Candisani / Common Sunflower (Helianthus annuus) in field, Japan
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Luciano Candisani / Common Sunflower (Helianthus annuus) in field, Japan
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Silvia Reiche / Oldworld Swallowtail (Papilio machaon) butterfly on Common Sunflower (Helianthus annuus), Hoogeloon, Noord-Brabant, Netherlands
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Silvia Reiche / Oldworld Swallowtail (Papilio machaon) butterfly on Common Sunflower (Helianthus annuus), Hoogeloon, Noord-Brabant, Netherlands
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Stephen Belcher / Common Sunflower (Helianthus annuus), Germany
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Yva Momatiuk & John Eastcott / Common Sunflower (Helianthus annuus) field of cultivated blooms with mature seeds in farmer's field, evening, Kansas
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Yva Momatiuk & John Eastcott / Common Sunflower (Helianthus annuus) field, close up of cultivated blooms with mature seeds in farmer's field, evening, Kansas
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Tim Fitzharris / Common Sunflower (Helianthus annuus) and Asters, North America
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Tim Fitzharris / Common Sunflower (Helianthus annuus) and Asters, North America
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Tim Fitzharris / Common Sunflower (Helianthus annuus) group showing symmetrical seed heads, North America
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Tim Fitzharris / Common Sunflower (Helianthus annuus) group showing symmetrical seed heads, North America
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Tim Fitzharris / Common Sunflower (Helianthus annuus) field near Flint Hills National Wildlife Refuge, Kansas
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Tim Fitzharris / Common Sunflower (Helianthus annuus) cluster and Temple of the Sun, Capitol Reef National Park, Utah
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Tim Fitzharris / Common Sunflower (Helianthus annuus) cluster and Temple of the Sun, Capitol Reef National Park, Utah
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Jan Vermeer / Common Sunflower (Helianthus annuus), North America and Europe
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Ingo Arndt / Common Sunflower (Helianthus annuus) close up of flower against blue sky, Europe
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Ingo Arndt / Common Sunflower (Helianthus annuus) pair of flowers against blue sky, Europe
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Ingo Arndt / Common Sunflower (Helianthus annuus) two large, bright yellow flowers in a field of Common Sunflowers, Europe
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Konrad Wothe / Common Sunflower (Helianthus annuus) with blue sky and clouds behind
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Konrad Wothe / Common Sunflower (Helianthus annuus) with blue sky and clouds
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Yva Momatiuk & John Eastcott / Common Sunflower (Helianthus annuus) flowers and Large-leaved Lupine (Lupinus polyphyllus) in summer, Pryor Mountain, Montana
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Tim Fitzharris / Common Sunflower (Helianthus annuus) close up, New Mexico
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Tim Fitzharris / Common Sunflower (Helianthus annuus) flower, New Mexico
00198043
Konrad Wothe / Common Sunflower (Helianthus annuus) with blue sky behind, Germany
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Konrad Wothe / Common Sunflower (Helianthus annuus) with blue sky behind, Germany
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Hiroya Minakuchi / Common Sunflower (Helianthus annuus) flowers, Japan
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Hiroya Minakuchi / Common Sunflower (Helianthus annuus) flowers, Japan
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Hiroya Minakuchi / Common Sunflower (Helianthus annuus) flowers, Japan
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Stephen Belcher / Common Sunflower (Helianthus annuus), Germany
