Stems: stout. Leaves: the basal on long petioles, oblong, three-lobed, tapering to both ends, the lateral lanceolate; stem leaves two to four pairs, pinnately parted in five to seven segments, lanceolate, acute, entire or undulate. Flowers: corolla long, funnel-form, stamens and style exserted.
A smooth plant with oblong three-lobed basal leaves growing on long stalks, the centre lobe being very much the largest of the three. The stem leaves are pinnately parted, narrow and pointed, and have entire or rarely undulated margins, while the pink flowers grow in a flat cymose panicle and have a funnel-form corolla. The roots have a most disagreeable and very strong odour.