25 February 2021

A perennial herb with an erect habit, and reaches 30–120 cm (12–47 in) high. The blue-green[3] leaves are pinnate with lobed and wavy margins, up to 30 cm (12 in) long. When injured, the plant exudes a yellow to orange latex, or sap.

The flowers consist of four yellow petals, each about 18 mm (0.71 in) long, with two sepals. A double-flowered variety occurs naturally. The flowers appear from late spring to summer, in umbelliform cymes of about 4 flowers.

The seeds are small and black, borne in a long, cylindrical capsule. Each has an elaiosome, which attracts ants to disperse the seeds (myrmecochory)