The definition of what a flower is remains an important question in botany. One generally makes a distinction between flowers and inflorescences, although this distinction is not always clear, as in the case of pseudanthia. Pseudanthia are compact inflorescences of small or reduced flowers that mimic a real flower. The structure of a flower is made up from a variable number of building blocks, generally with sepals (a calyx), petals (corolla), stamens (androecium), and carpels (gynoecium). The number and