Plant: Plant 5-30 dm, biennial, taprooted; herbage glabrous, musty-scented; stem generally purple-spotted or -streaked, erect, branched Leaves: petiole dilated; blade 1.5-3 dm, widely ovate, generally 2-pinnate INFLORESCENCE: umbels compound, much-branched; peduncles 2-8 cm; bracts 4-6, acuminate; bractlets 5-6, 1.5-2 mm, like bracts, generally ± fused at base, scarious; rays 10-20, 1.5-5 cm Flowers: many, small; calyx lobes 0; petals 5, wide, free, white or yellowish, tips narrowed; stamens 5; pistil 1, ovary inferior, 2-chambered, generally with a ± conic, persistent projection or platform on top subtending 2 free styles Fruit: 2-3 mm wide, ovate, slightly compressed side-to-side; ribs generally wavy, subequal, low; oil tubes per rib-interval 0; fruit axis divided to base; Seed: face grooved Misc: Moist, especially disturbed places; < 1000 m.