Peace lily, Spathiphyllum wallisii, Front view of single white flower showing the large central stigma against the single petal.

Lily, Lilium 'Casa Blanca', Front view of cut out six petalled open white flower with orange spots and stamens covered with orange pollen.

Cactus, Mexican Giant Cardon, Pachycereus pringlei, Close up blue duotone colour.

Allium, Black garlic, Allium nigrum, Side view of several flowerheads of white flowers, two in focus.

Black Cohosh, Cohosh bugbane, Actaea racemosa, View of several white flowering stems.

Black Cohosh, Cohosh bugbane, Actaea racemosa, View of one white flowering stem.

Great desert spoon, Dasyliron achrotrichum, Dramatic spikey mass of silvery narrow leaves standing out against a dark background.

Verbena, Brazilian verbena, Verbena bonariensis skeleton covered with snow.

Sunflower, Helianthus annuus, A mass of striped seeds .

Gerbera daisy, Gerbera jamesonii, Yellow flower with a black centre, viewed from overhead cut out on white.

Black false hellebore, Veratrum nigrum, A group of new shoots and leaves emerging in the spring.

Bare winter trees in a hedgerow surrounded by a snow covered landscape. Manipulated with a swirly painterly filter effect.

Bleeding heart, White, Lamprocapnos spectabilis alba, Side view of one stem with several white heart shaped flowers and cut leaves.