umbellule

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

花瓣白色，倒卵圆，基部楔，先端具缺刻的具的弯曲的裂片，伞花序的外部花瓣在放大(辐射状)。