2 January 202121 July 2021 Scotch Thistle Geometry Scotch thistles are currently in bloom. Their purple-blue heads standing out against the yellowing grasses. In stark contrast are the prickly stems, leaves and branches which form interesting geometric patterns. Oil painting by Dai Wynn on linen panel. 20.3 cm high by 25.4 cm wide by 0.3 cm deep approximately.