• Journal of the Korean Society of Environmental Restoration Technology
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• v.27 no.4
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• pp.45-66
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• 2024

This study aims to examine and analyze the diverse vascular plants in Maisan Provincial Park, with the objective of establishing fundamental data for the systematic preservation and efficient management of plant resources. A total of 23 field surveys were conducted from February 2022 to March 2023, and a total of 733 taxa were identified, including 120 families, 410 genera, 644 species, 17 subspecies, 52 varieties, 13 formas, 2 cultivars, and 5 hybrids. Among the surveyed taxa, 20 taxa were identified as rare plants designated by the Korea Forest Service. Additionally, one taxa of Cyrtosia septentrionalis, a grade II endangered species designated by the Ministry of Environment, was recognized. There were 26 taxa categorized as Korean endemic plants, and a total of 101 taxa represented floristic regional indicator plants. Moreover, a total of 53 taxa were identified as naturalized plants and 5 taxa were classified as ecosystem-disturbing plants. The urbanization index and naturalized plant index were calculated to be 16.5% and 7.2%, respectively.

• Korean Journal of Plant Taxonomy
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• v.36 no.4
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• pp.335-360
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• 2006

The distribution on 88 taxa of wild orchids in the Korean Peninsula was investigated by the examinations of specimens and the distribution maps were presented. The species numbers distributed at each eight floral regions in the Korean Peninsula are as the followings; Gapsan Province 27 taxa, Gwanbuk 21, Gwanseo 13, Middle 37, South 39, Southern-coast 33, Jeju 64 and Ulleung 19. Most species (72.7%) of Korean wild orchids are found in the Jeju Island. Eighteen taxa of them are restricted to the island in the Korean Peninsula. Among Korean species, 30 taxa grow at evergreen broad-leaved forests, and 16 are northern elements distributed at high mountains or northern part. In terms of distribution, the Korean wild orchid species are classified into IUCN Red List Categories by a modified criterion for Korean plants. No orchid species included EX or EW categories is found in the Korean Peninsula. Ten species are designated to be in CR category; Cymbidium kanran, C. lancifolium, C. ensifolium, Cypripedium japonicum, Cyrtosia septentrionalis, Dendrobium moniliforme, Habenaria chejuensis, H. radiata, Neofinetia falcata and Sedirea japonica, of which C. ensifolium and H. chejuensis are regarded as CR species for the first time. On the other hand, 22 taxa are classified into EN category, and the following nine taxa are newly proposed to be EN species; Gastrochilus japonicum, G. fuscopunctatus, Gastrodia verrucosa, Habenaria flagellifera, Herminium lanceum var. longicrure, Chamaegastrodia sikokiana, Lecanorchis kiusiana, Neottia hypocastanoptica and Tipularia japonica.

• Journal of Environmental Science International
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• v.21 no.4
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• pp.437-450
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• 2012

This study was carried out to investigate the flora of Is. Gageo (Jeollanam-do). The vascular plants were collected 13 times (from June 2008 to September 2011), and 465 taxa in total were identified, including 112 families, 301 genera, 402 species, 3 subspecies, 49 varieties, 9 forms and 2 hybrids. 171 taxa were first records for the region. Among them were seven taxa of Korean endemic plants and the Ministry of Environment-designated plants, which should be protected by the wildlife protection law, were identified as three taxa. There were 54 taxa of the flora with the levels III, IV, V in the floristic indicator plants which was designated by Ministry of Environment. The naturalized plants were identified as 29 taxa, and their naturalization ratio and urban index were found to be 6.2% and 9.0% respectively. There existed many kinds of plants resources having conservational value like $Loxogramme$ $salicifolia$, $Sarcandra$ $glabra$, $Osmanthus$ $insularis$, $Saussurea$ $polylepis$, $Carex$ $ligulata$ var. $austrokoreensis$, $Hosta$ $jonesii$, $Cyrtosia$ $septentrionalis$, etc., in this area. As therefore clear that appropriate plans to conserve the natural habitat of Is. Gageo must be made immediately.

• Korean Journal of Environment and Ecology
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• v.26 no.2
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• pp.139-155
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• 2012

Vascular plants of Island Gageo in Jellonamdo were investigated 10 times from August, 2005 to August, 2011. In the result of survey, the flora of this island consists of 341 taxa totally; 93 families, 246 genera, 289 species, 7 subspecies, 36 varieties and 9 forms. Yellow-fruit bearing plants of $Neolitsea$ $sericea$ which were found in this island are newly named as $Neolitsea$ $sericea$ (Bl.) Koidz. for. $koreana$ M. Kim. There were 8 Korean endemic plants such as $Hosta$ $yingeri$, $Impatiens$ $furcillata$, $Saussurea$ $pseudo-gracilis$, etc. Also 3 Korean endangered species which is designating by Ministry of Environment such as $Osmanthus$ $insularis$ and $Cyrtosia$ $septentrionalis$ and 9 rare and remarkable species such as $Viburnum$ $japonicum$, $Asplenium$ $yoshinagae$, $Broussonetia$ $kazinoki$ for. $koreana$, etc. were found in this island. Furthermore, 11 taxa of naturalized plants (3.2%) were also observed in this island.