Plants 25–70 cm high. Taproot aromatic. Stem green or purplish tinged. Basal leaves petiolate; petiole 5–26 cm; blade to 29 × 25 cm; pinnae 2–4 pairs, ultimate segments ovate to ovate-lanceolate, (0.5–)1–6(–9) × (0.2–)0.5–5(–8) cm, both surfaces hispid or pilose with white hairs, hairs sometimes restricted to veins. Peduncles 4–22 cm; bracts 1–4, subulate to linear, 0.5–1.2 cm, caducous; rays 3–5, 2–5 cm, lengthening in fruit to 10 cm; bracteoles 4–5, lanceolate to ovate-lanceolate, 2–5 × 1–1.5 mm, abaxially pubescent and on margin, usually reflexed. Fertile flowers 1–6 in each umbellule. Petals obovate, ca. 1.2 × 1 mm. Styles slightly longer than the stylopodium. Ovary white pubescent. Fruit 1–2.2 × 0.2–0.25 cm, base caudate; ribs sparsely bristly, densest towards the base. Fl. and fr. May–Jul.