小裂片

Anthers attached at corona lobelet sinus, ovoid, ca. 2 mm.

花药附着的副花冠小片凹缺，卵球形，约2毫米。

Anthers 6, opposite perianth segments, attached at lobe sinus, lobelet sinus, or lobe apex of corona, dorsifixed, introrse.

花药6，对生于花被片，附着片凹缺，小片凹缺，或副花冠片先端的，背着，内向。

Petals white, obovate or subround, base cuneate, apex notched with small incurved lobule, outer petals in umbellule sometimes enlarged (radiant).

花白色，倒卵形或近圆形，基部楔形，先端具缺刻的具小的弯曲的小片，小伞形花序的外部花大(辐射状)。