I adore Japanese manhole covers. They are just so beautiful! Here’s the one for Toyota City:
It features the symbol of Aichi prefecture in the middle, surrounded by sun flowers. Toyota City has adopted the sunflower as its symbol flower. Likewise, the manhole cover for Takayama features rhododendron flowers, which are symbolic for the city of Takayama.
In fact, I think almost every Japanese city has a symbol flower and a symbol tree. Additionally, each province has a symbol flower and even each month of the year has its own typical flower (see hanafuda card game).
The importance that the Japanese attach to flowers is further illustrated by the following anecdotes: During my stay in Japan, I have often been asked what the symbol flower of Belgium is. Japanese people seemed quite surprised when I said there is none (as far as I know). I have also heard that during trips abroad, Japanese people will often ask their tour guide about a particular flower. Usually the tour guide doesn’t know anything about flowers and the response will be ‘that’s just a flower’, causing great disappointment to the Japanese tourists.
At first I was quite surprised by the Japanese fascination with flowers. But if you think about it, it shouldn’t be surprising at all, considering that the Japanese elevated flower arrangement to a true art form (ikebana 生け花) and have developed an entire symbolic flower language in which words and codes are assigned to flowers (hanakotoba 花言葉). I guess I can only conclude that the Japanese sure do love their flowers!