Perideridia bolanderi

Perideridia bolanderi is a species of flowering plant in the family Apiaceae known by the common name Bolander's yampah.

It is a perennial herb which may approach one meter in maximum height, its slender, erect stem growing from tubers measuring up to 7 centimeters long.

Leaves near the base of the plant have blades up to 20 centimeters long which are divided into many subdivided lobes of various sizes and shapes; the terminal segments are usually lined with teeth.

The inflorescence is a compound umbel of many spherical clusters of small white flowers.

The Atsugewi and Miwok of California used the tuberous roots of this plant for food.