Close up of leaves of Bizmarkia Palm, St John, Virgin Islands.

A silver grey Fan palm cultivar, Close view of the ribs radiating out from the centre and some protruding at the top, Against blue sky, Shot in Vietnam.

A silver blue grey Fan palm cultivar, Close view of the ribs radiating out from the centre, Shot in Vietnam.

A silver grey Fan palm cultivar, Close view of the ribs radiating out from the centre, Shot in Vietnam.

Allium, Allium aflatunense 'Purple Sensation', Close view of one flowerhead just opening with many tiny star shaped flowers radiating out from the centre.

Allium, Allium aflatunense 'Purple Sensation', Close view of one flowerhead with many tiny star shaped flowers radiating out from the centre.

Dahlia, Waterlily Dahlia, Very close view of flower centre with petals radiating out. Black and white with a sepia tone.

Dahlia, Waterlily Dahlia, Very close view of pale pink with yellow flush flower centre with petals radiating out.

Pansy, Viola x wittrockiana cultivar. Single flower with ruffled petals of muted purple and area of dark purple-brown radiating from yellow eye at centre.

Pansy, Viola x wittrockiana cultivar. Two flowers with areas of dark purple-brown radiating from the centres of yellow petals.