I found a cherry tree from Washington DC in Tokyo Metropolitan Teien Art Museum at Meguro, Tokyo. That was a little surprise for me. Japan sent 3000 cherry trees to Washington DC in 1912. This tree was one of these. After 80 years, this tree was back to its home town. I wanted to say to the tree "You had amused many Americans in Washington DC. How wonderful you are."
This is a flower of Anemonopsis. Anemonopsis is a monotypic genus in the family Ranunculaceae, containing only the species Anemonopsis macrophylla. This plant is native to Japan. The central part of the flower with violet fringe is the real flower, and its surrounding white petal like parts are actually calyxes like a dogwood.
この雄しべが長く伸びて上から垂れ下がった特徴的な花はカリガネソウです。こちらも目黒の自然教育園に咲いていました。花の名前の由来は、雁が飛んでいるように見えるからだそうです。蜂が花びらにとまると、この雄しべが蜂の背中に花粉をつけるんだそうです。とても良く出来た構造ですね。分布は東アジア（日本、朝鮮半島、中国）で、英語の common name はなさそうです。学名は Caryopteris divaricataです。
This plant name is Karigane sou in Japanese. I was not able to find its English common name. Its scientific name is Caryopteris divaricata. It distributes in Eastern Asia including Japan, Korea, and China. Shape of this flower is very unique. Its stamen hung in front of the flower. When a bee sit on the flower, the stamen touches on the bee's back for pollination.
これはワレモコウの花です。目黒の自然教育園に可憐に咲いていました。英語の common name は Great Burnet。Wikipediaによると、「根はタンニンやサポニン多くを含み、天日乾燥すれば収斂薬になり止血や火傷、湿疹の治療に用いられる」のだそうです。
These are flowers of Great Burnet. Its Japanese name is Waremokou. According to Japanese Wikipedia, its root includes tannin and saponin, and thus used as adstringentia to stop bleeding, treat burn injury or eczema.
I visited Atami in Japan on this last Saturday to join an alumni association party of our laboratory. Since I had a little time before the party, I was walking around the hotel where the party will be held. I met an Indian postdoc when I was walking around the hotel. He had been in Europe for few years, so we talked a lot about difference between Westerner's culture and Japanese culture. I really had a wonderful time. We saw the beautiful full moon at that night (see the third picture) . I think that Atami is a nice place to visit, if you don't have enough time to go far away from Tokyo. It only took less than 1 hour to get there. I'm thinking to visit there alone by myself in the near future.