Hellebore, Helleborus, Christmas Rose Lenten Rose, close up of a group of flowerheads.

Hellebore, Helleborus, Christmas Rose Lenten Rose, close up of a group of flowerheads.

Hellebore, Helleborus x hybridus 'Harvington white speckled', Purple and white flower growing outdoor.

Hellebore, Helleborus orientalis hybrid, Close front top view of one pink flower backlit with yellow stamens.

Hellebore, Helleborus orientalis hybrid, Close front side view of one pink flower backlit with yellow stamens.

Hellebore, Helleborus x hybridus 'Double Ellen Red', backlit showing mottling on the petals.

Hellebore, Helleborus x hybridus 'Double Ellen Red', against a warm painterly textured background.

Hellebore, Helleborus orientalis.

Hellebore, Helleborus orientalis.

Hellebore, Helleborus orientalis hybrids.

Hellebore, Helleborus orientalis.

Hellebore, Helleborus orientalis.

Zebra Longwing or Zebra Heliconia Butterfly, (Heliconius charitonia), feeding on a flower near Panajachel, Guatemala

Three Mexican Silverspot Butterflies, Dione moneta poeyii, on a plant in the Atitlan Nature Reserve near Panajachel, Guatemala.

Beech hedge, Fagus Sylvatica, View along a mature hedge showing fresh green leaves.

Beech hedge, Fagus Sylvatica, View along a mature hedge showing fresh green leaves.

Oak, Common oak, Quercus robur, Side view of fairly mature tree with no leaves, silhouetted against the misty dawn sky in an English field.

Eucalyptus, Eucalyptus globulus, Cut out of three mature leaves on a piece of stalk.

Hosta, Spring shoots of a mature plant sprouting up among cut off spent stems of the previous year.

Chrysanthemum 'Brown eyes' Multiple flowerhead of a button chrysanthemum, ponpon flowers with deeper eye covered with dewy spider web.

Cider gum, Eucalyptus gunnii, small sprig of mature leaves against white background with shadow.

Poppy, Opium poppy, Papaver somniferum.

Tulip, Tulipa.

Water lily, Nymphaea.