One day not long ago an herb-gatherer from Miaoli brought a basketful of herbs into Dr. Lin's office for appraisal, whereupon Dr. Lin discovered an herb which looked remarkably like the three-island variety of ch'ai-hu.
有天，一位來自苗栗的採藥人，帶著一簍藥草，找林俊清鑒定；林俊清發現藥草長得和日本的三島柴胡很像，心中一動，就跟著採藥人去找。