组1. 翼茎组
Sect. Pterocaulon Iljin in Not. Syst. Herb. Hort. Bot. Petrop. 3: 144, 1922 et in Bull. Jard. Russe 23: 146, 1924.
叶沿茎下延成茎翼。总苞无蛛丝毛或有稀疏蛛丝毛。