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Chen Zhihuan (right) leads community residents to make plant specimens。 Photo by Beijing Daily reporter He Guanxin

Yesterday (16th)，A vivid plant science class was held in the Agricultural College community，The speaker is Chen Zhihuan, a 75-year-old retired professor from the Botanical Research Office of the School of Landscape Architecture, Beijing Agricultural University，He leads community residents to pick up fallen leaves、Preparing specimens，Get to know the flowers, plants and trees around you。

10 o'clock，More than 20 residents set off from bet365 online betting appthe community service station，The big trees surrounding the small square，One by one identification。Chen Zhi welcomed the sunshine and raised a leaf，Invite residents to take a closer look: "Everyone, look，It has a strange shape，Like three feathers，There are jagged dents on the edges，What kind of leaf is it?”

Chen Zhihuan smiled and revealed the answer: "This is the leaf of paper mulberry tree，This kind of tree has strong vitality，The whole body is a treasure，Can be used as medicine、Papermaking。"He specially reminded，Although it looks like a hawthorn fruit，The fruits of paper mulberry are slightly poisonous，Cannot be eaten at will。

Under the leadership of Chen Zhihuan，Residents got to know Poplar tomentosa in the community、Juniper cypress、Plants such as grevillea，Understand their characteristics and properties。The cold wind blows in winter，But everyone’s bet365 online sports betting mobileenthusiasm never diminishes。Subsequently，Chen Zhihuan moved the classroom from outdoor to indoor again。In the community comprehensive activity center，He led everyone to make specimens from fallen leaves collected。

Since retirement in 2008，Chen Zhihuan has been devoted to community public welfare education，Holding public welfare knowledge lectures，affectionately called "Grandpa Plant" by residents。“I am a botany teacher，What I can do for everyone is to popularize science knowledge，I also gained a lot of happiness from the lectures。”

http://www.fm1073.com.cn/jdt/2023-11/17/cms1427979article.shtml