P. Lutea also named P. delavayi var. Lutea, P. potaninii var. trollioides, it is bush shape. And it grows to 1.0-1.5m, canopy to about 1 meter. The new leaves are cyan, 20-25cm. the spire is green-yellow. Hard petals. Early blooming, about in the end of April and the early May. Slight aroma of the flower.
It is mainly distributed in the hilly area of limestone in Kunming, Dali, Zhongdian of Yunnan province, China.