Horse Chestnut, Conker, Aesculus hippocastanum.

Tulip, Tulipa, Side view of yellow coloured flower growing outdoor showing stamen.

Tulip, Tulipa, Side view of yellow coloured flower growing outdoor showing stamen.

Tulip, Tulipa, Side view of white coloured flower growing outdoor.

Tulip, Tulipa, Side view of white coloured flower growing outdoor.

Tulip, Tulipa, Side view of white coloured flower growing outdoor.

Tulip, Tulipa, Side view of white coloured flower growing outdoor.

Kalanchoe, Bulgarian Oil Rose, Side view of mauve coloured bud growing outdoor.

Kalanchoe, Bulgarian Oil Rose, Side view of mauve coloured bud growing outdoor.

Kalanchoe, Bulgarian Oil Rose, Side view of mauve coloured bud growing outdoor.

Lavender, Lavandula, Side view of mauve coloured flowers growing outdoor.

Lavender, Lavandula, Side view of mauve coloured flowers growing outdoor.

Hellebore, Open black hellebore flower head on a stem in side view, with a second flower in back view, against a pure white background.