Female perianth lobes dimorphic, subequal, abaxial lobe hooded, 1/2 as long as achene, lateral 2 lobes triangular-ovate, membranous.

• 雌花花被裂片二形，近等长的，背面裂片盔状，1/2倍于瘦果，三角状卵形的侧2裂片，膜质。