Ferula

Plants 1.5-2 m tall. Root thick, fusiform. Stem base fibrous. Leaves large, bipinnate; segments oblong; margin entire to sinuate. Umbels axillary, regularly distributed from the base to the top of the plant, not pubescent. Rays up to 30. Petals yellow, deciduous. Fruit 10-12 mm long; furrows 1-(2)-vittate; vittae large, sometimes branched; commissure 4-6-vittate, unequal and variable.