観世水 ・ かんぜすい ・ kanzesui
A water design depicting a swirling whirlpool. A flattened (horizontal) stylized water vortex. The design can be used stand-alone, or the whirlpool designs can be connected creating an almost ryuusui (flowing water) like pattern, however the individual kanzesui/vortexes are still recognizable. Some (woven) designs are stylized with a small swirl bordered by round brackets.
Named after a pattern used on Noh costumes.