Is shanghai beauty flower an incomplete flower?

Yes, the Shanghai beauty flower (also known as the Chinese flowering cabbage or Brassica rapa var. chinensis) is considered an incomplete flower. In botany, an incomplete flower lacks one or more of the four main floral structures: sepals, petals, stamens, or carpels. Specifically, the Shanghai beauty flower may have missing stamens or carpels, making it less than fully developed compared to complete flowers.