Leaves and stem
The leaves of this plant are quite distinctive. They are pinnate, being made up of numerous leaflets - which have a toothed edge or margin.
The leaves are 'silvery' especially on the underside / lower surface - see image at foot of the page.
Flowers and Fruits
The flowers are born on long stalks which arise in the leaf axils.
They are a bright yellow with 5 petals and noticeable, 'pointed' green sepals - see image of calyx / sepals.
Ecology and other notes
Said to be the only common flower with silvery, pinnate leaves *.
Its distribution is widespread, and the plant is common in damp grassy areas and also 'waste lands' and sand dunes.
It is a perennial, and can spread by means of its long, rooting runners.