Achene ovoid to semicircular, often compressed, sessile or stipitate on oblique torus, usually reflexed on dorsiventrally or laterally winged pedicels.

• 瘦果卵球形到卵圆形，经常压缩，无柄或者具柄在斜花托上，通常反折在背面或者侧面具翅花梗。