부산광역시 장산 일대의 관속식물상

This study was to carried out to survey and analyse the vascular plants of Mt. Jangsan, Busan Metropolitan City, South Korea. The vascular plants were surveyed from June to October, 2019. The numbers of vascular plants in this site were 497 taxa and comprised of 106 families, 306 genera, 454 species, 7 subspecies, 29 varieties, 5 forms and 2 hybrids. The planted species were 16 taxa including Ginkgo biloba , Cedrus deodara , Zea mays and so on. In this study, 309 taxa were identified, including Selaginella rossii, Cyrtomium falcatum, Cephalanthera falcata and so on. The rare plants were 4 taxa including Hololeion maximowiczii(EN), Ottelia alismoides(LC), Iris ensata Thunb. var. spontanea (LC) and Sagittaria trifolia (DD). All rare plants were found in Jangsan Wetland. The Korean endemic plants were 9 taxa including Populus × tomentiglandulosa , Hemerocallis hakuunensis, Hosta minor and so on. The floristic target species were totally 53 taxa, which were 2 taxa of grade Ⅳ, 11 taxa of grade Ⅲ, 6 taxa of grade Ⅱ and 34 taxa of grade Ⅰ. The alien plants were 58 taxa including Rumex crispus, Ipomoea purpurea , Helianthus tuberosus, Vulpia myuros and so on.