We can see various motifs of sakura in many things.
In many primary school, teachers affix such stamps to evaluate students results of homework or exam.
The more petals the sakura has, the result is better.
Today, the word ‘sakura’ often means Someiyoshino, but it was originally Yamazakura (Mountain Cherry).
In addition, Yamazakura has a sharp-pointed petal crest.
Like many other plants, sakura has long been used as a family crest.