Abstract
Inflorescence characterized by clusters of florets, rather than simple flowers, is often used as cut flowers. The number of florets and the shape of inflorescence have a significant impact on the quality and price of cut flowers, and therefore, controlling these characters is crucial in cut flower production. The mechanism of inflorescence architecture development appears to intricately change depending on the hereditary factors and cultivation conditions, but it has some regularity, too. In this paper, it is explained that the mechanism of inflorescence architecture development for the purpose of stable production of cut flowers, especially of Gypsophila paniculata using a term of "regularity" as a keyword.