• Korean Journal of Environment and Ecology
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• v.36 no.1
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• pp.30-55
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• 2022

This study conducted a flora survey in the areas of Mt. Sambong (282m) and Mt. Jaung (263m), located in Paju-si, Gyeonggi-do. A total of 434 taxa, including 6 forms, 34 varieties, 11 subspecies, 383 species, 271 genera, and 94 families, were surveyed in the two mountain areas. The ferns were identified as 24 taxa from 10 families, the gymnosperms as 8 taxa from 2 families, the dicotyledonous plants as 322 taxa from 73 families, and the monocotyledonous plants as 80 taxa from 9 families. Five taxa, including Salix koriyanagi, Cimicifuga heracleifolia, Forsythia koreana, Paulownia coreana, and Hemerocallis hakuunensi, were identified as the Korean endemic plants. Eight taxa, including Cimicifuga heracleifolia, Tylophora floribunda, and Iris minutiaurea as Vulnerable species, andAristolochia contorta, Viola diamantiaca, Lithospermum erythrorhizon, Lilium distichum, andArisaema heterophyllumas Least Concern species, were designated as rare and endangered plants designated by the Korea Forest Service. The invasive alien plants were 40 taxa, including Rumex crispus, Phytolacca americana, Cerastium glomeratum, Silene armeria, Chenopodium album, Chenopodium ficifolium, Magnolia obovata, Potentilla supina, Amorpha fruticosa, Medicago sativa, Robinia pseudoacacia, Trifolium repens, Euphorbia supina, Hibiscus trionum, and Oenothera biennisaccounting for 9.2 percent of the 434 taxa of the surveyed plants. As this area is a mountainous area close to settlement facilities, it is believed that ecological preservation measures and measures of specialized plants should be implemented.

• Korean Journal of Plant Resources
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• v.20 no.2
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• pp.201-211
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• 2007

The vascular plants at the nature every second year in Wolchulsan National Park was listed 325 taxa: 86 families, 205 genera, 283 species, 1 subspecies, 36 varieties and 5 forms. Based on the list of the rare plants by the Forest Research Institute, 3 taxa were recorded in the studied areas; Lilium callosum (Preservation priority order; No. 191), Viola albida (No. 202), Wikstroemia trichotoma (No. 120) and based on the list of Korean endemic plants, 8 taxa were recorded; Carex okamotoi, Lilium amabile, Carpinus coreana, Clematis trichotoma, Stewartia koreana, Ajuga spectabilis, Weigela subsessilis, Adenophora triphylla var. hirsute. Specific plants by floral region were total 44 taxa; Prunus davidiana, Wistaria floribunda in class IV, 9 taxa (Neolitsea aciculata, Vaccinium bracteatum, Utricularia racemosa, etc.) in class III, 5 taxa (Bupleurum longiradiatum, Ostericum melanotilingia, Cirsium schantarense) in class II, 28 taxa (Polygonatum falcatum, Eurya japonica, Ajuga spectabilis, etc.) in class I. The naturalized plants in this site were 4 families, 6 genera, 9 taxa and naturalization rate was 2.8% of all 325 taxa vascular plants.

• Korean Journal of Plant Resources
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• v.29 no.2
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• pp.189-203
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• 2016

This study was carried out to investigate the flora of Jingangsan Mt. (Ganghwa-gun). The vascular plants identified during the 11 round field surveys were a to total of 560 taxa: 114 families, 336 genera, 495 species, 7 subspecies, 53 varieties, 4 forms and 1 hybrid. A high plant diversity were Poaceae (11.0%), Asteraceae (10.8%), Cyperaceae (8.8%), Rosaceae (4.6%) and Lamiaceae (4.3%) in regular order. The four taxa of Korean endemic plants such as Viola seoulensis Nakai, Salix koriyanagi Kimura ex Goerz, Hemerocallis hakuunensis Nakai and Polygonatum infundiflorum Y. S. Kim, B. U. Oh & C. G. Jang were collected. The vascular plants on the red list according to IUCN evaluation basis were found to be four taxa: Near Threatened (NT) species of Delphinium maackianum Regel, and Not Evaluate (NE) species of Mosla japonica (Benth. ex Oliv.) Maxim., Carex paxii Kük. and Polygonatum infundiflorum Y. S. Kim, B. U. Oh & C. G. Jang. The floristic regional indicator plants found in this area were 28 taxa comprising two taxa of degree IV, three taxa of degree III, eight taxa of degree II, and 15 taxa of degree I. In addition, the naturalized plants were identified as 44 taxa and the percentage of naturalized index (NI) was 7.9%, and Urbanization Index (UI) was 13.7%.

• Korean Journal of Environment and Ecology
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• v.21 no.1
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• pp.38-46
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• 2007

The vascular plants of the Moaksan provincial park area were listed as 615 taxa: 120 families, 383 genera, 542 species, 1 subspecies, 69 varieties and 3 forms. Based on the list of Korean endemic plants, 6 taxa were recorded: Cephalotaxus koreana, Carex okamotoi, Lilium amabile, Salix purpurea var. japonica, Weigela subsessilis, Aster koraiensis and based on the list of the rare plants by the Forest Research Institute, 5 taxa were recorded in the studied areas: Lilium distichum (Preservation priority order; No. 159), Tricyrtis dilatata (No. 97), Iris ensata var. spontanea (No. 197), Aristolochia contorta (No.151), Viola albida (No. 202). Specific plant species by floral region were a total of 48 taxa; Prunus yedoensis in Class V, 2 taxa, as Carex arenicola, Wistaria floribunda in Class IV, 4 taxa, Spiraea salicifolia, Thea sinensis, Asperula lasiantha, etc. in Class III, 8 taxa, as Lilium distichum, Iris ensata var. spontanea, Acer triflorum, etc. in Class II, 33 taxa, as Camptosorus sibiricus, Orixa japonica, Lonicera praeflorens, etc. in Class I. The naturalized plants in this site were 16 families, 40 genera, 48 species, 2 varieties, 50 taxa and the naturalization rate was 8.1% of all 615 taxa vascular plants. As a conservation measure, there needs to be controls on the imprudent development and excessive visitors and a detailed plan like nature the rest of the year.

• Korean Journal of Plant Resources
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• v.19 no.4
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• pp.459-470
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• 2006

This study was carried out objectively to analyze the distributing flora for the conservation of natural environment and to construct the database in Mt. Joryeong, Chungcheongbuk-do, Korea. The period of survey was from November, 2004 to September, 2005, and the routes were A (Recreation $forest{\sim}Shinseon-bong$), B $(Shinseon-bong{\sim}Mapae-bong)$, C(Joryeong 3rd $gateway{\sim}Mapae-bong$), and D $(Yongseong-gol{\sim}Gitdae-bong)$. The vascular plants were summarized as 341 taxa; 85 families, 219 genera, 299 species, 36 varieties, and 6 forma. The rare and endangered plants designated by Korea Forest Service were 3 taxa; Paeonia japonica, Viola albida, and Rhododendron micranthum. The Korean endemic plants were 9 taxa; Cephalotaxus harringtonia, Salix caprea, Deutzia coreana, Spiraea prunifolia for. simpliciflora, $Lespedeza{\times}tomentella$, Vaccinium koreanum, Salvia chanroenica, Weigela subsessilis, and Cirsium setidens. And in the results of survey on resource plants, we confirmed 171 taxa of ornamental plants (50.1%), 222 taxa of edible plants (65.1%), 237 taxa of medicinal plants (69.5%) and 146 taxa of other useful plants (42.8%).

• Journal of Environmental Impact Assessment
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• v.26 no.2
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• pp.140-159
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• 2017

The purpose of this study is to construct the information of natural resources and the basic data for assessing the Korean natural environment by objective surveying and analysing vascular plants distributed in the main survey sites of Hannam-Jeongmaek. The vascular plants were summarized, numbering 488 taxa including 102 families, 300 genera, 428 species, 4 subspecies, 50 varieties and 6 forms. The rare plants were 4 taxa including Aristolochia contorta(LC), Viola albida(LC), Chionanthus retusus(LC) and Tylophora floribunda(VU). The Korean endemic plants were 7 taxa including Salix koriyanagi, Clematis brachyura, Clematis trichotoma, Philadelphus schrenckii, Paulownia coreana, Weigela subsessilis and Cirsium setidens. The specific plants by floristic region were 29 taxa including 1 taxa of grade IV, 3 taxa of grade III, 5 taxa of grade II and 20 taxa of grade I. The naturalized plants were 52 taxa including Fallopia dentatoalata, Rumex obtusifolius, Helianthustuberosus, Dactylis glomerata, Phleum pratense and so forth. The invasive alien plants were 7 taxa including Rumex acetosella, Sicyos angulatus, Ambrosia artemisiifolia, Ambrosia trifida, Aster pilosus, Eupatorium rugosum and Lactuca scariola.

• Journal of Korea Foresty Energy
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• v.20 no.2
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• pp.81-116
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• 2001

The flora of vascular plants investigated in civilian control line area was 730 taxa consisting of 104 families, 331 genera, 631 species, 2 subspecies, 90 varieties, 7 formae. The forest was comparatively well conserved by Pteridophyta calculation(Pte-Q), 1.27. Among the investigated vascular plants, Korean endemic plants(Carex okamotoi, Salix koriyanagi, Clematis chisanensis, Aconitum pseudo-laeve var. erectum, Viola diamantiaca etc.) were 31 taxa; rare and endangered plants(Disporum ovale, Lilium distichum, Trillium kamschaticum, Gastrodia elata etc.) were 35 taxa; naturalized plants(Dactylis glomerata, Poa pratensis, Rumex acetosella, Gypsophila oldamiana, Lepidium apetalum etc.) were 26 taxa. The forest vegetation was classified into 1 order, 1 alliances, 6 communities; Rhododendro-Quercetalia mongolicae Kim 1990(신갈나무-철쭉군목), Lindero-Quercion mongolicae Kim 1990(신갈나무-생강나무군단), A. Carex humilis v. nana- Phinus densiflora Community 소나무-산거울군락, B. Acer pseudo-sieboldianum-Quercus mongolica Community 당단풍-신갈나무군락, C. Styrax obassia-Quercus mongolica Community 쪽동백-신갈나무군락, D. Acer palmatum-Quercus mongolica Community 단풍나무-신갈나무군락, E. Rheodendron mucronulatum-Quercus mongolica Community 진달래-신갈나무군락, F. Betula schmiditii-Quercus mongolica Community 박달나무-신갈나무군락

• Korean Journal of Environment and Ecology
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• v.35 no.1
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• pp.1-23
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• 2021

This study conducted a survey on flora at Mt. susdolbon(508m), Mt. seongjubong (625.3m), and Mt. sulibong(596.2m), located in Yanggu-gun, Gangwon-do. A total of 403 taxa, including 6 forms, 43 varieties, 4 subspecies, 350 species, 255 genera, and 84 families, were surveyed in the three mountain areas. 18 taxa from 5 families of ferns, 3 taxa from 1 family of gymnosperms, and the dicotyledonous plants as 302 taxa from 69 families of the dicotyledonous plants were identified. The remarkable plants included 11 taxa of the Korean endemic plants, such as Populus tomentiglandulosa, Salix koriyanagi, Cimicifuga heracleifolia, Aconitum pseudolaeve, Clematis trichotoma, Echinosophora koreensis, Vicia chosenensis, Salvia chanryoenica, and Hemerocallis hakuunensis. The rare plants designated by the Korea Forest Service were 4 taxa, including Echinosophora koreensis as endangered species (EC), Cimicifuga heracleifolia, Epimedium koreanum, and Lilium cernuum. The Least Concern species (LC) were 13 taxa, including Persicaria orientalis, Exochorda serratifolia, Viola diamantiaca, Lithospermum erythrorhizon, and Trigonotis icumae. The invasive alien plants were 28 taxa, including Persicaria orientalis, Rumex crispus, Phytolacca americana, Cerastium glomeratum, Chenopodium album, Chenopodium ficifolium, Amorpha fruticosa, Robinia pseudoacacia, Trifolium pratense, Trifolium repens, Oxalis dillenii, Euphorbia supina, and Oenothera biennis, accounting for 6.9 percent of the 403 taxa of the surveyed plants.

• Korean Journal of Plant Resources
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• v.22 no.1
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• pp.13-25
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• 2009

This study was carried out to investigate the flora of Ssanggok valley, Chilsung-myeon, Geosan-gun and Chungcheongbuk-do, and the survey of period was from March, 2006 to June, 2007. The results of surveying the flora were recorded as 401 taxa; 88 families, 242 genera, 342 species, 52 varieties and 7 forma. The korean endemic plants were 8 taxa; Cephalotaxus harringtonia, Salix purpurea var. japonica, Asarum maculatum, Clematis trichotoma, Zanthoxylum schinifolium var. inermis, Lonicera subsessilis, Weigela subsessilis and Saussurea seoulensis. The endangered plant designate by the ministry of environment was Berchemia berchemiaefolia. The rare plants designated by Korea forest service were 7 taxa; Crypsinus hastatus, Asarum maculatum, Paeonia japonica, Berchemia berchemiaefolia, Viola albida, Rhododendron micranthum and Lilium distichum. In future, we will discuss a concrete conservation plan and propagation method about rare plants for conservation. The plant resources were 220 taxa of ornamental plant, 239 taxa of edible plant, 281 taxa of medicinal plant and 206 taxa of others. The naturalized plants were 13 taxa; Dactylis glmerata, Rumex crispus, Chenopodium glaucum, Robinia pseudo-acacia, Trifolium pratense, Trifolium repens, Oenothera lamarckiana, Aster subulatus, Erechtites hieracifolia, Erigeron annuus, Erigeron canadensis, Helianthus tuberosus and Taraxacum officinale. The naturalized index and Urbanized index were about 3.24% and 4.53%.

• Korean Journal of Plant Resources
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• v.30 no.4
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• pp.378-398
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• 2017

Mt. Deoktaesan(1,113 m) is located in Jinan-gun Baekun-myon and Jangsu-gun Chunchun-myon. Investigated area was decided to include Mt. Deoktaesan, Mt. Seongaksan and its neighbor area, and this study was conducted from March to October, 2015 in 12 days. Based on the voucher, vascular plants in Mt. Deoktaesan were 108 families 341 genera 525 species 4 subspecies 64 varieties 14 forms, totally 607 taxa, which is 12.4% of total Korean flora. Korean endemic plants were 15 species. Among these species, Populus tomentiglandulosa T.B.Lee, Campanula takesimana Nakai and Forsythia koreana (Rehder) Nakai are verified as planted species. Rare and endangered plants of designated by Korea Forest Service were 10 taxa, such as Peucedanum hakuunense Nakai, Paeonia japonica (Makino) Miyabe & Takeda, Koelreuteria paniculata Laxmann, Eranthis stellata Maxim., Eranthis stellata Maxim., Viola albida Palib., Chionanthus retusus Lindl. & Paxton, Campanula takesimana Nakai, Tricyrtis macropoda Miq. and Iris ensata var. spontanea (Makino) Nakai, respectively. Phytogeographical special plants were totally 41 taxa, which were grade 17 taxa of garde I, 12 taxa of grade II, 12 taxa of grade III, 8 taxa of grade IV, and 1 taxon of grade V.