Herbaceous, perennials, sometimes woody at base. Taproot conic, caudex woody, undivided or branched. Stem terete, rarely hollow. Leaf blade 1–3-pinnate or pinnately decompound, rarely ternately dissected or simple and undivided. Umbels compound; bracts few or absent; rays few to many; bracteoles few to many, lanceolate or linear, bases often connate, scarious or scarious-margined; umbellules few- to many-flowered; pedicels short or long, occasionally subsessile. Calyx teeth obsolete or minute. Petals white or yellow, suborbicular or oblong, emarginate, apex broadly or narrowly inflexed, abaxially often pubescent or hirsute. Stylopodium conic or depressed. Fruit ovoid or ellipsoid, moderately or slightly dorsally compressed, glabrous or variously hairy; ribs prominent, rounded or keeled, subequal, marginal ribs sometimes narrowly winged; vittae 1–2(–4) in each furrow, 2 (rarely 4–8) on commissure. Seed face plane. Carpophore 2-cleft to base.
"Fr ovoid, subterete, densely puberulent, with conspicuous narrow ribs; oil- tubes solitary in the intervals, 2–4 on the commissure; carpophore bifid to the base; umbels long- pedunculate, very dense; bracts several, linear; rays 20–40, about equal; umbellets many-fld; bractlets numerous, linear; sep linear; pet white; stylopodium depressed-conic; biennials or perennials with pinnate to decompound lvs and deeply incised lfls. 80, Eurasia."