Table 1.
The collected region of the wild plants

Region	No. of sample	Wild plants
Cheonan	9	Korean Berchimia leaf, Pine needles, Nut pine leaf, Lotus leaf, Chrysanthemum zawadskii, Kuansh, Oak tree leaf, Chinese pepper leaf, Taro leaf
Gongju	1	Kudzu leaf
Seosan	2	Mugwort, Kudzu leaf
Nonsan	2	Bamboo leaf, Pine needles
Geumsan	2	Korean Berchimia leaf, Sasa borealis
Seocheon	5	Persimmon leaf, Bamboo leaf, Ramie leaf(2), Mugwort