The township of Kuantien in Tainan County is famous for its abundance of water caltrop, but that's not why Lin travels to the area 10 or 15 times a year. He goes there to see a type of miniature bullrush and a sedge that are not to be found in Ilan.
有許多菱角田的台南官田，因為有宜蘭不曾見過的「小水莞」、「密穗磚子苗」，也讓他一年去上十幾趟。