Abstract: The ‘Senmiao Yellowhorn’ is a new yellowhorn cultivar by selection. It has good characteristics such as late phenology; high ratio of bisexual flower/total flower, axillary bud capable of bearing fruits, and stable yield. Compared with ordinary Yellowhorn control the phenology of ‘Senmiao Yellowhorn’ is later seven to ten days. The ratio of bisexual flower/total flower is 48%. The capsule is spherical; Each cluster has three to seven capsule; The single capsule weight, transverse diameter, and vertical diameter are 21.85 g, 54.27 mm, 52.35 mm, respectively. The seed number in each capsule is 16.73; The weight of 1 000 seeds is 714.13 g. The recommendation cultivation density of ‘Senmiao Yellowhorn’ is 2 m×3 m.The suitable cultivation region is Ningxia, Inner Mongolia, Shaanxi, Gansu and other main planting area of Yellowhorn.

Key words: yellowhorn, lateflowering, new variety