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This study was carried out to investigate the flora of estuary regions, Namdaecheon, Jusucheon, and Maeupcheon, placed in the east coast of Gangwon-do. The vascular plants were summarized as 441 taxa, including 90 families, 277 genera, 388 species, 2 subspecies, 35 varieties, and 6 forms. Number of species in each investigated region was 271 taxa of Namdaecheon, 247 taxa of Jusucheon, and 285 taxa of Maeupcheon, respectively. Among the investigated 441 taxa, 7 Korean endemic, 5 rare plants and 37 specially designated plants by Ministry of Environment were also included. Aquatic and hydrophyte plants were collected 41 taxa, and the thinophyte and halophyte plants were investigated 22 taxa. The naturalized plants were 59 taxa, and the percent of naturalized plant species was estimated as 13.3%. Based on the floristic composition, Maeupcheon was estimated as well conserved estuary region among the investigated 3 rivers.

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-This study was carried out to investigate the distribution and characteristics of plants resources in Mt. Jo-bong (Yangyang-gun, Gangwon-do) from April, 2011 to October, 2012. The vascular plants were summarized as 500 taxa; 92 families, 296 genera, 434 species, 6 subspecies, 49 varieties, and 11 forma. Among the investigated 500 taxa, 13 Korean endemic, 14 rare plants, 1 endangered and 75 specially designated plants by Ministry of Environment were included. The naturalized plants were 32 taxa and percent of naturalized plant species and urbanization index were estimated 6.4% and 10%, respectively.