The pine needle design is a pattern suiting the taste of persons participating in tea ceremony, that originates from a convention established by the head of a school of the tea ceremony who covered his tea room garden with pine needles from the first use of the fireplace in the middle of November to around March.
松葉図案も茶道好みの紋様で、茶道の家元では十一月中旬の炉開きから三月頃まで、茶室の庭には松葉を敷く習わしがあり、このしきたりに由来した図案である。