Guy Edwardes / Close up of a sunflower (Helianthus annuus) head, Provence, France.
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Guy Edwardes / Close up of a sunflower (Helianthus annuus) head, Provence, France.
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Ann & Steve Toon / Cornfield annual summer wildflowers growing on one of the plant charity Landlife's National Wildflower Farms, St Helens, Merseyside, UK, June.
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Cyril Ruoso / Common Sunflower (Helianthus annuus) field, Bourgogne, France
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Cyril Ruoso / Common Sunflower (Helianthus annuus) field, Bourgogne, France
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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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Nigel Cattlin / Sunflower (Helianthus annuus) seedlings grown in light on left and without light on right, etiolated chlorotic and weak.
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Nigel Cattlin / Sunflower (Helianthus annuus) seedlings in different stages of germination from seed to seedling with cotyledons, above and below ground. Sequence.
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Nigel Cattlin / Sunflower (Helianthus annuus) seedling with cotyledons expanding, above and below ground. Sequence 5/5.
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Nigel Cattlin / Sunflower (Helianthus annuus) seedling with cotyledons expanding, pericarp still attached to leaf. Above and below ground. Sequence 4/5.
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Nigel Cattlin / Sunflower (Helianthus annuus) seedling with cotyledons expanding, leaves still trapped by pericarp. Above and below ground. Sequence 3/5.
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Nigel Cattlin / Sunflower (Helianthus annuus) seed within pericarp / seed coat, radicle developing. Above and below ground. Sequence 2/5.
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Nigel Cattlin / Sunflower (Helianthus annuus) seed in soil, prior to germination and growth, above and below ground. Sequence 1/5.
Nigel Cattlin / Sunflower (Helianthus annuus) seedling with expanding cotyledons, pericarp retained on leaf. Sequence 2/3.
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Nigel Cattlin / Sunflower (Helianthus annuus) seedling with cotyledons still trapped inside pericarp after germination. Sequence 1/3.
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Nigel Cattlin / Sunflower (Helianthus annuus) seedling with cotyledons expanding following germination.
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Nigel Cattlin / Sunflower (Helianthus annuus) seedling with cotyledons still trapped inside pericarp, following germination.
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Guy Edwardes / Sunflower (Helianthus annuus) Alpes-de-Haute-Provence, France.
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Loic Poidevin / Common sunflower (Helianthus annuus) flower opening, Vendee, France, July.
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Loic Poidevin / Common sunflower (Helianthus annuus) flowers, Vendee, France, July.
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Loic Poidevin / Common sunflower (Helianthus annuus) f Vendee, France, July.
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Juan Carlos Munoz / Sunflower (Helianthus annuus), close-up. Sunflower plantation in Cuestahedo, Merindad de Montija, Merindades, Burgos, Castilla y Leon, Spain. August.
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Guy Edwardes / Sunflowers, Valensole Plateau, Provence, France. July 2014
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Guy Edwardes / Cultivated sunflowers (Helianthus annuus) Provence, France. July 2008
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Martin Grimm/ BIA / Common Sunflower (Helianthus annuus) and Cornflower (Centaurea cyanus) field, Hesse, Germany
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Martin Grimm/ BIA / Common Sunflower (Helianthus annuus) and Cornflower (Centaurea cyanus) field, Hesse, Germany
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Ernie Janes / RF - Sunflowers (Helianthus annuus) in bloom on Norfolk, England, UK. August. (This image may be licensed either as rights managed or royalty free.)
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Ernie Janes / RF - Sunflowers (Helianthus annuus) in bloom on Norfolk, England, UK. August. (This image may be licensed either as rights managed or royalty free.)
Fabrice Cahez / Sunflower (Helianthus annuus) Vosges, France, September.
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Rolf Nussbaumer / Common sunflower (Helianthus annus), field in bloom, Texas, USA. May
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Christophe Courteau / Common sunflower (Helianthus annuus) Vendee. France
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Christophe Courteau / Common sunflowers (Helianthus annuus) Vendee. France
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Gary K. Smith / Saving and storing of Sunflower (Helianthus annuus) seeds, Norfolk, England UK. October
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Gary K. Smith / Potting bench showing seeds stored in various containers, as well as flower heads, seed heads and physalis fruit. Norfolk, England UK. October
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Gary K. Smith / Potting bench showing seeds stored in various containers, as well as flower heads, seed heads and physalis fruit. Norfolk, England UK. October
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Gary K. Smith / Potting bench showing seeds stored in various containers, as well as flower heads, seed heads and physalis fruit. Norfolk, England UK. October
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Gary K. Smith / Potting bench showing seeds stored in various containers, as well as flower heads, seed heads and physalis fruit. Norfolk, England UK. October
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Gary K. Smith / Potting bench showing seeds stored in various containers, as well as flower heads, seed heads and physalis fruit. Norfolk, England UK. October
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Gary K. Smith / Potting bench showing seeds stored in envelope as well as flower heads, seed heads and physalis fruit. Norfolk, England UK. October.
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Juan Carlos Munoz / Sunflower (Helianthus annus) Valensole Plateau, Alpes Haute Provence, France, June.
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Pal Hermansen / Sunflower (Helianthus annuus) seeds, showing diversity of shapes.
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Pal Hermansen / Sunflower (Helianthus annuus) flower with male hoverfly, Akershus, Norway, September.
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Loic Poidevin / Coal Tit ((Periparus ater) feeding on Sunflower (Helianthus annus) seed head, Bulgaria, February
Loic Poidevin / Sombre Tit (Poecile lugubris) perched on sunflower (Helianthus annus) head, Bulgaria, February
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Loic Poidevin / Coal tit (Periparus ater) and Willow tit (Poecile montanus) feeding on Sunflower seeds (Helianthus annuus) Bulgaria, February
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Hiroya Minakuchi / Common Sunflower (Helianthus annuus) field in bloom, Hokkaido, Japan
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Cyril Ruoso / Honey Bee (Apis mellifera) covered in pollen on a Common Sunflower (Helianthus annuus) close up, Bourgogne, France
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Cyril Ruoso / Common Sunflower (Helianthus annuus) field, Bourgogne, France
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Cyril Ruoso / Honey Bee (Apis mellifera) covered in pollen on a Common Sunflower (Helianthus annuus) close up, Bourgogne, France
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Cyril Ruoso / Honey Bee (Apis mellifera) covered in pollen on a Common Sunflower (Helianthus annuus) close up, Bourgogne, France
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Cyril Ruoso / Common Sunflower (Helianthus annuus) close up showing anthers covered with pollen, Bourgogne, France
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Cyril Ruoso / Honey Bee (Apis mellifera) covered in pollen on a Common Sunflower (Helianthus annuus) close up, Bourgogne, France
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Cyril Ruoso / Honey Bee (Apis mellifera) covered in pollen on a Common Sunflower (Helianthus annuus) close up, Bourgogne, France
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Cyril Ruoso / Common Sunflower (Helianthus annuus) field with fodder silo, Bourgogne, France
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Cyril Ruoso / Common Sunflower (Helianthus annuus) field, Bourgogne, France
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Cyril Ruoso / Honey Bee (Apis mellifera) covered in pollen on a Common Sunflower (Helianthus annuus) close up, Bourgogne, France
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Cyril Ruoso / Common Sunflower (Helianthus annuus) field, Bourgogne, France
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Cyril Ruoso / Common Sunflower (Helianthus annuus) field, Bourgogne, France
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Cyril Ruoso / Common Sunflower (Helianthus annuus) field, Bourgogne, France
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Cyril Ruoso / Common Sunflower (Helianthus annuus) field, Bourgogne, France
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Duncan Usher / Painted Lady (Vanessa cardui) butterfly feeding on Common Sunflower (Helianthus annuus) nectar, Lower Saxony, Germany
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Tim Fitzharris / Common Sunflower (Helianthus annuus) flower, North America
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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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Ernie Janes / RF- Sunflowers (Helianthus annuus) in rain, Norfolk, UK, August. (This image may be licensed either as rights managed or royalty free.)
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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
