Lily, Calla Lily, Zantedeschia, Studio image of white flower with green stem and leaf.

Hosta cultivar, White pendulous flowers with ling curved stamens, growing on a plant against a green background.

Hosta cultivar, White pendulous flowers with long curved stamens, growing on a plant against a green background.

Field poppy, Papaver rhoeas, Side view of one opening red flower pushing off its bud casing, on hairy curved stalk, Against blue sky.

Field poppy, Papaver rhoeas, Side view of one open red flower on hairy curved stalk, Against pale blue sky.

Shirley poppy, Papaver rhoeas Shirley series, Front view of one white flower with black stamens in a curved stem and soft focus leaves behind, Against pale blue sky.

African daisy, Osteospermum 'Serenity purple', Back view of one opening flower with raindrops on a curved stem.

Winter windflower, Anemone blanda 'Blue Shades', Side view of delicate blue daisy flower fully open, its curved stem bent over so its facing downwards.

Calla lily, Zantedeschia, Black and white image of front view of one flower and stem, showing the curved single petal against a light to dark graduated background.

Calla lily, Zantedeschia, Black and white image of front view of one flower and stem, showing the curved single petal against a light to dark graduated background.

Calla lily, Zantedeschia, Black and white image of front view of one flower and stem, showing the curved single petal against a light to dark graduated background.

Hyacinth, Hyacinthus, Side view of a single white flowerhead with multiple florets on a curved stem.