Trees given 'ID cards' at Changchun University

Photos taken on Nov. 17 show trees with “ID cards” on the campus of Changchun University in Jilin province. On the cards is relevant information about each tree, as well as QR codes that passerby can scan to get more details. The cards were made by professors and students majoring in landscape architecture, with the goal of popularizing biological knowledge. (Photo: Zhang Yao/China News Service)