This study was carried out to investigate the flora of Mt. Suan (Gyeonggi-do). The vascular plant were collected 13 times (from March to October 2011), and 402 taxa in total were identified, including 102 families, 274 genera, 354 species, 6 subspecies, 40 varieties and 2 forms. Among them, 8 taxa of Korean endemic plants and the Korea Forest Service-designated rare plants were identified as 5 taxa. Based on the list of plants which have been approved for overseas delivery, 10 taxa were recorded in the investigated area. The Ministry of Environment-designated specially plants were identified as 17 taxa. The naturalized plants were identified as 41 taxa and the percent of naturalized index (NI) was 10.2% of total 402 taxa vascular plants.

Abstract
 1. 서 론
 2. 재료 및 방법
 3. 결과 및 고찰
  3.1. 관속식물의 종 구성
  3.2. 한국고유종
  3.3. 희귀식물
  3.4. 국외반출 승인대상 식물
  3.5. 식물구계학적 특정식물
  3.6. 귀화식물
 참 고 문 헌

• 김중현(국립생물자원관 식물자원과) | Jung-Hyun Kim (Division of Plant Resources, National Institute of Biological Resources) Corresponding author
• 김선유(국립생물자원관 식물자원과) | Sun-Yu Kim (Division of Plant Resources, National Institute of Biological Resources)
• 이지연(인천시 남동구 남동대로 860) | Ji-Yeon Lee (860 Namdongdaero, Namdong-gu, Incheon)
• 윤창영(신경대학교 생명공학과) | Chang-Young Yoon (Department of Biotechnology, Shingyeong University)