Virginia creeper, Parthenocissus quinquefolia, Studio shot of backlit leaves.

Boston ivy, Parthenocissus tricuspidata, Close-up detail of red autumn leaves.

Boston ivy, Parthenocissus tricuspidata, Close-up detail of green leaves turning red and yellow in autumn.

Boston ivy, Parthenocissus tricuspidata, growing across a bricked up window on a New York apartment block.

Boston ivy, Parthenocissus tricuspidata growing across a dilapidated window and air conditioning unit on a New York apartment block.

Virginia creeper, Parthenocissus quinquefolia. Stem and leaves casting shadow over wood with vertical pattern of grain.

Boston ivy, Parthenocissus tricuspidata.

Virginia creeper, Parthenocissus quinquefolia.

Virginia creeper, Parthenocissus quinquefolia.

Virginia creeper, Parthenocissus henryana.

Virginia creeper, Parthenocissus henryana.

Virginia creeper, Parthenocissus henryana.

Sunflower, Helianthus, Bee on flower growing outdoor in a field.

Sunflower, Helianthus, Bee on yellow flower growing outdoor.

Sunflower, Helianthus, A field of sunflowers near Sandeep in the Dordogne, France

Sunflowers near Sherwood, Oregon, USA.

Sunflower, Helianthus.

Sunflower, Helianthus.

Sunflower, Helianthus.

Sunflower, Helianthus annuus.

Sunflower, Helianthus annuus.

Sunflower, Helianthus.

France, Provence Cote d'Azur, Yellow sunflower against clear blue sky in a field near the village of Rognes.

France, Provence Cote d'Azur, Yellow sunflower against clear blue sky in a field near the village of Rognes.