Mustard, White mustard, Sinapis alba.

Mustard, White mustard, Sinapis alba.

Mustard, White mustard, Sinapis alba.

Foxglove, Digitalis purpurea, close up showing pattern inside flowers in sunlight.

Foxglove, Digitalis purpurea, close up showing pattern inside flowers.

Variegated Sword Lily, Furcraea selloa var. marginata, close up detail of leaves.

Scabious, Field scabious, Knautia arvensis, purple coloured flower growing outdoors.

Knapweed, Black knapweed, Centaurea nigra, with Marbled White butterfly.

Knapweed, Black knapweed, Centaurea nigra, with Marbled White butterfly.

Knapweed, Black knapweed, Centaurea nigra.

Knapweed, Black knapweed, Centaurea nigra.

Goat's beard, Tragopogon pratensis, close up showing the delicate pattern.

Goat's beard, Tragopogon pratensis, close up showing the delicate pattern.

Thistle, Cotton thistle, Onopordum acanthium.

Orchid tree, Bauhinia variegata, purple flower.