Prionosciadium watsonii is a plant species known from the Mexican states of Durango and Sinaloa.

[2][3] Prionosciadium watsonii is a biennial herb with a large taproot.

Leaves are compound with narrowly lanceolate, some of the leaflets with narrowly lanceolate lobes.

Flowers are borne in umbels on the tips of branches.

This Apiaceae article is a stub.