What does 缀 mean in 浆果密密地缀在灌木丛中 (from "Fog Magic" 穿越魔雾)?
浆果密密地缀在灌木丛中

缀(zhuì) here means 点缀, to decorate or to interperse.
Compare to this example below:

embellish a dress with lace and ribbons; // 用花边和丝带点缀衣装.