Flower

Flower --- цветок.

A flower [math]\displaystyle{ F }[/math] is a connected graph of order 8 which contains a cut-vertex [math]\displaystyle{ w }[/math] such that each component of [math]\displaystyle{ F \setminus w }[/math] has order at most 3. The vertex [math]\displaystyle{ w }[/math] is called a stamen of flower and the components of flower are called its petals.