Orchid, Blue vanda with pale blue petals marked with checkerboard pattern at the 2011 Orchid Festival in Chiang Mai, Thailand.

Dandelion clock, Taraxacum officinale.

Sorrel, Rumex acetosa.

Dandelion clock, Taraxacum officinale, Seedhead against blue sky with individual seeds dispersed by wind on a pappus of fine hairs.

Dandelion, Cropped view of single dandelion seed head captured to highlight details.

Ononis arvensis, single stem of pea-like flowers.

Single white water lily flower with yellow centre in a pond surrounded by green lily pads floating on the water surface.

Single white water lily flower with yellow centre in a pond surrounded by green lily pads floating on the water surface.

USA, Georgia, Savannah, Bee on yellow centre of Water lily, Nymphaea alba, encircled by white petals.