This the the parachute of a dandelion seed. The seed is not shown, it is attached to the long extension on the right. The leaves of the plant are toothed. The name “dandelion” comes from the French “dent-de-lion” meaning “lion’s tooth”. The microscopic observation reveals that the leaves are not the only part of the plant that have teeth. The fine hair of the parachute also show a tooth-like appearance.
Quite noticeable is the chromatic aberration, which can be seen as a blueish fringe around some of the hair.