We have investigated the flora of Yeongheungdo Island in Ongjin-gun, Incheon. A total of 13 separate field trips were carried out from March 2012 to October 2013. As a result, 302 taxa including 80 families, 211 genera, 261 species, 6 subspecies, 31 varieties and 4 forms were identified. These include the following: 1 taxon protected under the Act on the Protection and Management of Wildlife, 3 Korean endemic taxa, 8 floristic indicator species including 2 taxa of grade V, 3 of grade II and 3 of grade I, 33 naturalized taxa with the naturalization rate of 10.9% and 1 northern taxon vulnerable to climate change.

• 임용석(동북아식물연구소) | Yongseok Lim (Northeastern Asia Plant Institute)
• 나혜련(동북아식물연구소) | Hye Ryun Na (Northeastern Asia Plant Institute)
• 한병우(동북아식물연구소) | Byungwoo Han (Northeastern Asia Plant Institute)
• 서원복(동북아식물연구소) | Won Bok Seo (Northeastern Asia Plant Institute)
• 현진오(동북아식물연구소) | Jin-Oh Hyun (Northeastern Asia Plant Institute) Corresponding author