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　In May, the refreshing fresh green as if the blue sky that passes high in the sky spreads out and carries the refreshing scent of light green young leaves.　　　　　　　　　　In this season, the atmosphere where the greenery of the vegetation smells is called "wind", the wind is called "karu wind", the comfortable wind that blows through the vegetation is called "green wind", and the greenery gradually increases in depth and various shades While showing a gradation, walking around the Sumida River terrace and the waterside is a relaxing time.　　　　"May fine weather" originally seems to have been sunny in May (the rainy season) in May of the lunar calendar, but it is said that in the new calendar, it has come to refer to the clear sky in May today .　　　　　　　　　　　　　　　　　　　At Tsukuda Park along the lower left bank of the Sumida River Chuo-ohashi Bridge, clusters of purple orchids (silane) have begun to bloom. Perilla is a perennial plant of the family Orchidaceae. It is rare in the orchid family, adapts from half shade to Hyuga, enjoys both potted plants and open-field plants, and is relatively strong and easy to grow, and is also popular as an introductory orchids.　　　　　　　　　　　　In early spring, lanceolate leaves are stretched from the storage tissue of water and nutrients called the egg-shaped "fake bulbs" at the base, and before and after the GW, red-purple flowers with a diameter of about 3 cm at the tip of the flower stem. , Several wheels for birding. Of the six petals (outer flower cover 3, inner flower cover 3), the inner flower cover consists of side petals and lip valves with a characteristic shape. Recently, many color changes and change flowers have been produced, and it is easy to increase from seeds, so we hear that new breeds are also actively breeding.