Zijin Grass
The Zijin Grass (Chinese: 紫金草; Pinyin: Zǐ Jīn Cǎo; Japanese: シキンソウ) is a classic Chinese origami flower designed by Haozheng Pei. In Chinese culture, it is used to pay traditional respect to the deceased, especially martyrs; and it is a representation of the Chinese violet cress, referred to as the "flower of peace" both in China and Japan. It is often folded on the National Memorial Day on Dec 13 and the eve of Qingming Festival to pay tribute to the victims of the Nanjing Massacre in 1937 and pray for peace and security all over the world.