A perennial herb with a straight, smooth stem and complex leaves growing from a fleshy rhizome. The height of the flowering plant on average is about 1.5 m, in some cases it reaches 2.5 m. The stem has a rectangular cross-section. The basal leaves are broad and long, petiolate, twice or thrice trifoliate, green or dark green in color with a glossy sheen. The order of the leaves is next. The total number of leaves on each plant can reach seventy. The leaf blade is smooth, up to 12 cm long, has an oval shape and usually two or three deep toothed protrusions (blades). On the terminal leaflet, three lobes are clearly distinguished, separated at the base by deep veins. Most plants have only one complex leaf. Blooms from June to September. Inflorescence-a serpentine brush up to 1 m long, develops at the top of the stem in late spring or early summer. The flowers are white, pubescent, have an unpleasant smell.