In many Japanese tea gardens and traditional houses, you will see a small fence made of bamboo and woven grass, with a round corner on top. It is called
Sodegaki, which means "sleeve fence", and it is named like this because it has the same proportions as a kimono sleeve...
Usually, they mark the entrance to the small garden where the tea house is located, like in this photo taken in Tondabayashi Jinaimachi, Osaka.
Sugiyama house, Tondabayashi Jinaimachi EXIF info:
Nikon D700
Lens: 14mm F/2.8D
Focal Length: 14mm
Aperture: F/4
Shutter Speed: 1/200s
ISO Sensitivity: ISO 400