2. The stem is upright and has branches on the upper part. Basal leaves are green, pinnately parted, long and narrow, 30 ~ 50 cm long. Among them, 1/3 is a weak petiole with a few leaflets or sessile leaflets. The top petal is the largest and blunt, and the edge is wavy or shallow. Other leaves are getting smaller and smaller. The whole leaf is like a harp, with a few white bristles scattered on it. The lower stem leaves are like basal leaves, with stalks or petioles at the base; The leaves on the upper part of the stem are usually rectangular or lanceolate, undivided and sessile, and the stem is supported at the base; A plurality of split leaves growing on the side gradually become smaller from top to bottom.