• Korean Journal of Environment and Ecology
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• v.37 no.1
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• pp.35-58
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• 2023

In this study, we conducted a flora survey at Mt.Bakdal (363m) and Mt. Myeongbong (245.3m) in Paju-si, Gyeonggi-do. A total of 405 taxa, including 2 forms, 32 varieties, 8 subspecies, 363 species, 261 genera, and 87 families, were surveyed in the two mountain areas. The ferns were identified as 12 taxa from 6 families, the gymnosperms as 6 taxa from 2 families, the dicotyledonous plants as 290 taxa from 70 families, and the monocotyledonous plants as 97 taxa from 9 families. The remarkable plants included 8 taxa of the Korean endemic plants, which were Populus tomentiglandulosa, Salix koriyanagi, Clematis brachyura, Viola seoulensis, Forsythia koreana, Paulownia coreana, Weigela subsessilis, and Hemerocallis hakuunensis, and 3 taxa of the rare and endangered plants as designated by the Korea Forest Service, including Tylophora floribunda as Vulnerable (VU) species, and Viola albida and Chionanthus retusus as Least Concern (LC) species. The invasive alien plants were 35 taxa, including Rumex crispus, Phytolacca americana, Cerastium glomeratum, Chenopodium album, Chenopodium ficifolium, Lepidium virginicum, Amorpha fruticosa, Robinia pseudoacacia, and Trifolium repens, accounting for 8.5 percent of the 405 taxa of the surveyed plants. We intend to further identify plants through the studies on unsurveyed areas in the western part of the DMZ, identify the native habitats of rare and specialty plants, and use them as basic data for managing ecosystem-disturbing plants.

• Korean Journal of Environmental Biology
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• v.42 no.1
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• pp.28-45
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• 2024

This study was conducted to investigate the flora of Sonjukdo Island(Yeosu-si), Korea. From results of four field surveys from April 2023 to October 2023, we identified 483 total taxa, representing 440 species, seven subspecies, 35 varieties, and one hybrid. They were placed in 322 genera and 109 families, including 249 taxa newly recorded in this study. Among them, four taxa were endemic to Korea, four taxa were IUCN red list plants, and 22 taxa were climate sensitive indicator plants. Floristic target plants amounted to 99 taxa, including two taxa of grade IV, 41 taxa of grade III, 10 taxa of grade II, and 46 taxa of grade I. A total of 54 taxa of alien plants were identified, with a Naturalized Index of 11.2% and an Urbanization Index of 13.8%. Three plants disturbed the ecosystem. The flora of this surveyed area belongs to the south-coast province among floral provinces of the Korean Peninsula. Our results provide basic data on vascular plants flora, plant species diversity, and distributional changes.

• Journal of the Korean Institute of Traditional Landscape Architecture
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• v.37 no.1
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• pp.41-55
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• 2019

The purpose of this study is to present the basic data for conservation and management of traditional landscape and ecological environment by surveying and analysing the vascular plants distributed in Gwnagneung, a royal tomb of the Joseon Dynasty. The results are as follows. The numbers of vascular plants were summarized as 446 taxa including 97 families, 274 genera, 384 species, 4 subspecies, 49 varieties and 9 forms. The planting species were 34 taxa including Ginkgo biloba L., Pinus koraiensis Siebold ＆ Zucc., Taxus cuspidata Siebold ＆ Zucc. and so forth. Exotic species such as Pterocarya stenoptera DC. and Magnolia obovata Thunb. need to be remove for traditional landscape management. The rare plants were 7 taxa including 2 taxa of CR(critically endangered), 2 taxa of VU(vulnerable) and 3 taxa of LC(least concerned). The Korean endemic plants were 8 taxa including Pseudostellaria coreana (Nakai) Ohwi, Chrysosplenium pilosum var. fulvum (N.Terracc.) Hara, Philadelphus schrenkii Rupr., Indigofera koreana Ohwi, Paulownia coreana Uyeki(planting), Weigela subsessilis (Nakai) L.H.Bailey, Aster koraiensis Nakai(planting) and Hosta minor (Baker) Nakai(planting). The specific plants by floristic region were 45 taxa including 2 taxa of grade V, 12 taxa of grade III, 9 taxa of grade II and 22 taxa of grade I. The naturalized plants were 25 taxa including Fallopia dumetorum (L.) Holub, Chenopodium ficifolium Smith, Amorpha fruticosa L., Galinsoga ciliata (Raf.) S.F.Blake and so forth. The target plants adaptable to climate change were 9 taxa including 1 taxon of endemic plant and 8 taxa of northern plants.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2019.04a
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• pp.72-72
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• 2019

간무봉(555.8m)은 강원도 인제군 남면에 위치하고 있다. 북한강의 지류인 소양강으로 대부분 둘러싸여 있으며 북서쪽에 봉화산(874.4m), 북동쪽에 기룡산(940.4m)과 이어진다. 현재까지 간무봉을 대상으로 한 식물상 조사 이력은 없었으나, DMZ 일원에 위치하는 산이기 때문에 DMZ의 식물상 연구를 위한 기초 자료로 보전하고 탐색하는 의미가 있다. 현지조사는 2018년 4월부터 10월까지 총 6회 수행하였다. 간무봉에는 굴참나무, 신갈나무, 소나무가 우점하고 있는 형태였으며, 조사 결과 관속식물은 73과 175속 211종 3아종 27변종 4품종으로 총 245분류군이 조사되었다. 그 중 양치식물은 고비, 고사리삼, 십자고사리, 퍼진고사리 4분류군이고, 나자식물은 소나무, 일본잎갈나무 2분류군, 피자식물은 노랑제비꽃, 은방울꽃, 꽃향유 등 205분류군이었다. 이는 우리나라 관속식물 4,494분류군(국립수목원, 2016)의 5.45%에 해당한다. 간무봉에서 확인한 특산식물은 진범, 할미밀망, 갈퀴아재비, 병꽃나무 등 6 분류군이며, 희귀식물은 미치광이풀(LC), 말나리(LC) 2 분류군 이외에 VU 이상에 해당하는 희귀식물은 발견하지 못하였다. 그리고 침입외래식물(국립수목원, 2016)의 경우 미국자리공, 수박풀, 미국쑥부쟁이, 단풍잎돼지풀 등 17 분류군이었다. 간무봉 주변에는 경작지, 군부대 훈련장소 등이 있으며, 서쪽 사면은 이미 벌목이 많이 된 상태이며, 북동쪽도 마을과 더불어 경작지로 개간되어 있다. 따라서 주변의 외부에서 가해지는 인위적인 간섭이 많은 상태라고 볼 수 있으며, 이미 유입된 단풍잎돼지풀 등 생태계교란종에 의한 변화에도 유의할 필요가 있다.

• Korean Journal of Environment and Ecology
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• v.24 no.4
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• pp.363-394
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• 2010

This study was carried out to investigate the vascular flora of the Hongcheon-gun area in Gangwon Province. The vascular plants were collected 13 times(from April 2008 to May 2009), and 1,055 taxa in total were identified, including 43 orders, 118 families, 443 genera, 903 species, 6 subspecies, 125 varieties, 18 form and 3 hybrids. Among them, 37 taxa of Korean endemic plants and the Office of Forestry-designated rare & endangered plants were identified as 35 taxa. Based on the list of plants which have been approved for overseas delivery, 61 taxa were recorded in the investigated area. The Ministry of Environment-designated plants, which should be protected by the wildlife protection law, were identified as four taxa and 224 taxa of specially designated plants by the Ministry of Environment. The naturalized plants were identified as 45 taxa, and their naturalization ratio and urban index were found to be 4.3%, and 16.1% respectively. 1,055 taxa listed consists of 359 taxa(34%) of edible plants, 293 taxa(27.7%) of medicinal plants, 166 taxa(15.7%) of pasture plants, 143 taxa(13.5%) of ornamental plants, 41 taxa(3.9%) of timber plants, 25 taxa(2.3%) of fiber plants and 3 taxa(0.2%) of industrial plants.

• Korean Journal of Plant Taxonomy
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• v.45 no.1
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• pp.96-107
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• 2015

This study presents a comprehensive account of the flora of hydrophytes and hygrophytes on Jeju Island. This approach aims to contribute to fundamental information about the conservation of plant diversity in wetlands. Field surveys were carried out from May of 2010 to September of 2014 in various types of wetlands on Jeju Island. A total of 189 taxa, including 52 families, 98 genera, 181 species, 6 varieties, 2 forma and 189 taxa, were found. Among them, 99 taxa (38 families, 60 genera, 96 species and 3 varieties) were hydrophytes and 90 taxa (23 families, 45 genera, 85 species, 3 varieties and 2 forma) were hygrophytes. In addition, Eleocharis${\times}$yezoensis H. Hara (Cyperaceae) was newly added to the flora of Korea. The protected wild plants designated by the Ministry of the Environment were 5 taxa, including Brasenia schreberi J. F. Gmel. and Dysophylla yatabeana Makino. The endangered species found included one Critically Endangered Species (i.e., Mankyua chejuense B.-Y. Sun, M. H. Kim & C. H. Kim), 5 Endangered Species (e.g., Lysimachia leucantha Miq.) and 7 Vulnerable Species (e.g., Tillaea aquatica L.). The floristic regional indicator plants found in this area were 44 taxa comprising 10 taxa of grade V, 7 taxa grade IV, 15 taxa of grade III, 5 taxa of grade II, and 7 taxa of grade I. The identified naturalized plants were 10 taxa; 8 families, 8 genera, 9 species and 1 variety. In the wetlands on Jeju Island, high plant species diversity was shown, and a number of rare plants and phytogeographically important plants were found. For these reasons, we consider that the wetlands on Jeju Island are very important areas from a botanical point of view. It is necessary to establish specific protection and maintenance policies in an effort to conserve these wetlands and species.

• Korean Journal of Plant Resources
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• v.21 no.4
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• pp.310-323
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• 2008

This study was to establish the floristic composition of vascular plants of Mt. Hwangjang (1,077.3m). Floristic composition of vascular plants were conducted during April 2006${\sim}$August 2007. Vascular plants were composed of 97 families, 257 genera, 357 species, 5 subspecies, 42 varieties and 9 formae, totaling 413 taxa. Among the investigated resources plants, 6 taxa were Korean endemic species. The special plants based on floral region by Ministry of Environment (2006) were 55 taxa. A naturalized plants were 15 species, correspond to 5.2% of totaling 290 species (Kim and Lee, 2006) appeared in South Korea.

• Korean Journal of Plant Taxonomy
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• v.47 no.1
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• pp.51-93
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• 2017

Eastern coastal lagoons are a particular type of estuarine systems where seawater mixes with fresh water from their catchments. With the development of aquatic vegetation, this area shows high level of biodiversity. The purpose of this study is to produce a strategy for the comprehensive conservation of the vegetation of coastal lagoons through studies of the floristics and plant species compositions in 17 eastern coastal lagoons in Korea. Vascular plants were collected 109 times, from June of 2010 to November of 2014. The results showed that there were 720 taxa in total, including 118 families, 378 genera, 655 species, 13 subspecies, 46 varieties, and 6 hybrids. Korean endemic species numbered 11 taxa, and vascular plants listed in the red list according to the International Union for Conservation of Nature (IUCN) numbered 18 taxa. Indicator species of fourth (IV) and fifth (V) degree, as specified by floristic subregions, numbered 23 taxa. Among the species investigated in this survey, there were 4 taxa of plants of southern origin and 8 taxa of plants of northern originin the Korean peninsula. Several rare plants, Thermopsis lupinoides, Ligusticum hultenii, Mitrasacme alsinoides, Utricularia australis, Juncus fauriei, Carex vesicaria, and Puccinellia kurilensis, were distributed in eastern coastal lagoons. In all, 96 alien plants were recorded in the investigated area. The coastal lagoons on the eastern coast of Korea showed high plant diversity with many rare plants and phytogeographically important plants. Conservation strategies to ensure biodiversity and effective management of coastal lagoons are discussed in detail.

• Korean Journal of Plant Resources
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• v.27 no.5
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• pp.447-476
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• 2014

We have investigated the flora of Daebudo Island in Ansan-si, Gyeonggi-do and Seonjaedo Island in Ongjin-gun, Incheon. Thirty-three separate field trips were carried out from March 2012 to October 2013. As a result, 518 taxa including 103 families, 316 genera, 451 species, 9 subspecies, 56 varieties and 16 forms were identified. Among them, a plant protected by the wildlife protection law, 7 Korean endemic plants and 5 threatened plants by National Arboretum and National Institute of Biological Resources were included. The floristic indicator plants were 38 taxa including 3 taxa of grade V, 4 taxa of grade IV, 4 taxa of grade III, 10 taxa of grade II and 17 taxa of grade I. Sixty-seven naturalized plants with naturalization rates of 12.9% were also found.

• Korean Journal of Plant Resources
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• v.29 no.5
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• pp.604-619
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• 2016

This study is aimed at identifying the distribution of vascular plants growing at Byeollipsan(Mt.), Bongchunsan (Mt.) and Gucksoosan(Mt.) in Ganghwa isand. Field surveys were conducted for each season from March 2015 to October 2015. The flora of study area were found to be of 455 taxa, 93 families, 280 genus, 392 species, 4 subspecies, 53 varieties and 6 forma. Rare plants were found to be of 3 taxa. Among them, rare plant species consisted of endangered species (EN degree):1 (Thalictrum simlex var. brevipes Hara), vulnerable species (VU degree): 2 (Wikstroemia trichotoma (Thunb.) Makino, Scorzonera albicaulis Bunge), respectively. In all the surveyed areas, a total of 6 taxa (Clematis brachyura Maxim. etc.) were found to be endemic to Korea. The floristic special plants found in the surveyed areas were 1 taxa of grade Ⅴ, 4 taxa of grade Ⅳ and 8 taxa of grade Ⅲ, respectively. The naturalized plants were identified as 29 taxa and included Fallopia dumetorum (L.) Holub, Ambrosia artemisiifolia L., Aster pilosus Willd. etc..