• Journal of the Korean Society of Environmental Restoration Technology
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• v.16 no.3
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• pp.63-81
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• 2013

The vascular plants in the Ohseosan and the Bongsusan, Chungnam were listed 439 taxa (9.0% of all 4,881 taxa of vascular plants); 95 families, 268 genera, 339 species, 5 subspecies, 75 varieties and 20 forms. Furthermore, the Ohseosan were listed 339 taxa and the Bongsusan were listed 306 taxa. So, Hemicryptophytes (H) were 107 taxa (24.4%), Therophytes (Th), Geophytes (G) same as were 82 taxa (18.7%) showed high proportional ratio in life form. Based on the list of rare plants, 4 taxa; Aristolochia contorta, Viola albida, Scutellaria insignis (LC) and Scrophularia koraiensis (DD) and endemic plants, 8 taxa; Aconitum pseudolaeve, Ajuga spectabilis, etc. Based on the list of specific plants, 35 taxa; Wisteria floribunda for. floribunda in class IV, 5 taxa (Scutellaria insignis, Scrophularia koraiensis, etc.) in class III, 5 taxa (Acer triflorum, Cymopterus melanotilingia, etc.) in class II, 24 taxa (Pyrus ussuriensis var. ussuriensis, Campanula punctata, etc.) in class I. Based on the list of naturalized plants, 9 families, 20 genera, 24 taxa (Persicaria orientalis, Carduus crispus, etc.) and ecosystem disturbing plants were Rumex acetocella, Ambrosia artemisiifolia. Naturalization rate was 5.5% of all 439 taxa of vascular plants and urbanization index was 7.5% of all 321 taxa of naturalized plants. In particular, for rare plants, in and ex-situ conservation of genetic resources must surely be done, by preserving present natural habitats, discovering additional natural habitats and securing seeds. Moreover, ecosystem disturbing plants require long-term monitoring and consistent management, since not only do they disturb the ecosystem in competition with Korean native species, but damage humans, too.

• Journal of Wetlands Research
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• v.11 no.2
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• pp.29-38
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• 2009

A coastal wetland is the important area of diverse biodiversity as a transitional zone between coast and land. The results of surveying the flora were recorded as 310 taxa; 85 families, 212 genera, 278 species, 27 varieties and 5 forma. The halophytes were 14 taxa; Atriplex gmelini, Salsola komarovii, Suaeda asparagoides and so forth. The hydrophytes and hygrophytes were 23 taxa; Boehmeria spicata, Persicaria hydropiper, Persicaria japonica and so forth. The naturalized plants were 40 taxa; Fagopyrum esculentum, Rumex crispus, Chenopodium ambrosioides and so forth. The specific plants for the floral region were 28 taxa; Pteris multifida, Cyrtomium fortunei, Dryopteris erythrosora and so forth. In future, the flora of coastal wetland will be analyzed in series, and community dynamics and species composition for the halophytes will be studied.

• Journal of Climate Change Research
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• v.8 no.3
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• pp.201-211
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• 2017

This study was conducted to investigate the vascular plants which can be an indicator of environmental change in Seseok of Jirisan National Park. The purpose of this study was to find out the basic information for the subalpine species. This study showed that the area had a total 295 taxa including 63 families, 177 genus, 252 species, 2 subspecies, 36 variants 5 forms and Pte-Q was 1.7. Among them, Korea endemic plants were 15 taxa such as Abies koreana. Rare plants were 14 taxa such as Viola diamantiaca. Naturalized plants consisted of 5 taxa such as Rumex crispus. The floristic regional indicator plants found in surveyed area were 72 taxa comprising 3 taxa of grade V, 7 taxa of grade IV and 24 taxa of grade III. In summary, The subalpine plants of the survey region consisted of 37 taxa including Abies koreana and Gymnadenia cucullata. As rare plants distributed in subalpine zone respond sensitively to climate change, accuracy distribution range, environmental characteristics of habitat and population dynamics of rare plants should be evaluated quantitatively.

• Journal of Environmental Science International
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• v.30 no.11
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• pp.891-905
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• 2021

The aim of this study was to investigate the plants in Yongjibong Natural Recreation Forest before construction, to provide basic data that can be used for various purposes. The survey was conducted on the planned recreational forest sites from June to September 2020. The numbers of flora are summarized as follows: 348 taxa, 95 families, 234 genera, 308 species, three subspecies, 30 varieties, and seven forma. The Korean endemic plants were of nine taxa, including Fagus engleriana, Celtis choseniana, and Broussonetia x kazinoki. The rare plants were of six taxa, including Juniperus chinensis var. sargentii, Hylotelephium ussuriense, Thuja orientalis, and F. engleriana; however, Juniperus chinensis var. sargentii, H. ussuriense, T. orientalis, and Iris ensata var. spontanea were planted species. The floristic regional indicator plants (unique plants) found in this survey area were of 33 taxa, comprising three taxa of grade V, four taxa of grade IV, nine taxa of grade III, four taxa of grade II, and 13 taxa of grade I. The naturalized plants were of 26 taxa, including Rumex crispus, Phytolacca americana, and P. esculenta. Among the naturalized plants, it is necessary to prevent the spread of Ambrosia trifida, Bidens frondosa, and Tagetes minuta through continuous monitoring.

• Journal of the Korean Institute of Traditional Landscape Architecture
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• v.33 no.3
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• pp.72-83
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• 2015

A plant diversity, which consists of indigenous plant community with Orientla thuja community (Natural monument no. 1) in Dodong, Daegu, is identified and analyzed as ecological characteristic to consider worth plants and vegetation resource of the region. The vascular plants of Thuja orientalis community were listed as 219 taxa (3.7% of all 4,881 taxa of Korean vascular plants); 67 families, 147 genera, 199 species, 16 varieties, and 4 forms. Vulnerable species (VU) and least concerned species (LC) were recorded based on IUCN standard; Koelretueria paniculata (VU), Thuja orientalis (LC), and Exochorda serratifolia (LC). Although the study site is a non-limestone area, a total of 15 taxa of calciphilous plants were identified; Cheilanthes argentea, Hypodematium glandulosopilosum, Asplenium retamuraria, Thuja orientalis, Spiraea blumei, Smilax sieboldii, etc. A total of 4 taxa endemic plants were identified; Prunus mandshurica for. barbinervis, Lespedeza maximowiczii var. tomentella, Forythia koreana (artificial origin), and Veronica pyrethrina. Among the list, 8 taxa of naturalized plants were identified; Fallopia dentatoalalta, Rumex crispus, Nasturtium officinale, Bidens frondosa, Erigeron annuus etc. Naturalization rate (NR) was 3.6%, of all 219 taxa of vascular plants and urbanization index (UI) was 2.2% of all 321 taxa of naturalized plants. Thuja orientalis occupies a lot of indigenous landscape in this study area which is the southern-limited part of a natural distribution where it can survive. The T. orientalis community, where indigenous plants have formed a characterful species composition based on habitat, has been confirmed as a worth national vegetation resource in an indigeous flora. It has been considered of plans for persistent conservation.

• Korean Journal of Environment and Ecology
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• v.29 no.6
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• pp.819-841
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• 2015

To investigate the distribution of vascular plants growing at Halmibong(1,026m) and Gusibong(1,014m) in Baekdutrail, we surveyed from March in 2013 to March in 2014. The flora of Haimibong and Gusibong in Baekdu trail were found to be; 528 taxa; 95 families, 287 genus, 454 species, 4 subspecies, 59 varieties, 11 forma. Rare plants were found to be; 15 taxa, 10 families, 14 genus, 13 species, 2 varieties. Among them EN degree was found to be 1 species(Rhododendron tschonoskii Maxim.), VU degree; 2 species(Scorzonera albicaulis Bunge, Lilium cernuum Kom.), LC degree; 12 species(Abies koreana Wilson, Coreanomecon hylomeconoides Nakai, Viola albida Palib. etc.) respectively. In all surveyed areas, a total of 15 taxa(Heloniopsis koreana Fuse, N.S.Lee & M.N. Tamura etc.) were found to be endemic to Korea. Distribution of floristic special plants in the surveyed areas were found to be divided into five classes (class I~V). The floristic special plants found in surveyed areas were 2 taxa of grade V, 6 taxa of grade IV, 12 taxa of grade III, respectively. The naturalized plants were investigated as 23 taxa; Rumex crispus L., Amorpha fruticosa L., Veronica arvensis L. etc..

• 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.

• The Korean Journal of Pesticide Science
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• v.7 no.4
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• pp.248-257
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• 2003

The objective of this experiment was to search plant species with herbicidal activity in Korea. Two hundred native plants were collected and their methanol extracts were obtained. Herbicidal activity of methanol extracts were determined by seed bioassay using canola (Brassica napus L.) seedlings. Six plants such as Staphylea bumalda, Wistaria floribunda, Allium victorialis, Rumex crispus, Chionanthus retusa, and Ulmus parvifolia were highly herbicidal: their $GR_{50}$ values were < $1,000{\mu}g\;g^{-1}$. In addition, seventeen plants such as Galium spurium, Zelkova serrata, Campsis grandiflora, Eucommia ulmoides, Sorbus commixta, Deutzia glabrata, Cercis chinensis, Alnus hirsuta, Zanthoxylum schinifolium, Quercus acutissima, Robinia pseudoacacia, Gleditsia japonica, Kerria japonica, Ligustrum obtusifolium, Thuja orientalis, Chamaecyparis obtusa, and Pulsatilla koreana showed herbicidal activity: their $GR_{50}$ values were between 1,000 and $2,000{\mu}g\;g^{-1}$. However, 177 plants showed no herbicidal activity. Plants with herbicidal activity found in this study could be used for weed management and herbicidal compounds in such herbicidal plants could be used as lead compounds in the development of new herbicides.

• Korean Journal of Plant Resources
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• v.21 no.2
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• pp.162-170
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• 2008

The purpose of this study was to suggest the raw data on establishing the domestic wetland conservation plan. The results of this study were as follows. The vascular plants were summarized as 201 taxa in Ahnshim wetland; 57 families, 154 genera, 179 species and 22 varieties. The rare and endangered plant designated by Korea Forest Service was Hydorcharis dubia. In the wetland plants, the emerged plants were showed Typha angustata, Beckmannia syzigachne, Zizania latifolia, Phragmites communis, Persicaria thunbergii, Oenanthe javanica and Veronica undulata, and the submerged plants were Potamogeton crispus, Vallisneria asiatica, Hydrilla verticillata, Ceratophyllum demersum and Myriophyllum verticillatum. And the floating leaved plants were confirmed Potamogeton distinctus, Hydrocharis dubia, Nelumbo nucifera and Nymphoides peltata, and the floating plants were Salvinia natans, Spirodela polyrhiza and Lemna paucicostata. The naturalized plants were 33 taxa; Avena fatua, Dactylis glomerata, Rumex crispus, Rumex conglomeratus, Amaranthus retroflexus, Lepidium apetalum, Tlaspi arvense, Descurainia pinnata, Potentilla supina, Vicia villosa, Robinia pseruo-acacia, Amorpha fruticosa, Trifolium repens, Medicago sativa, Ailanthus altissima, Euphorbia supina, Oenothera lamarckiana, Quamoclit angulata, Ipomoea purpurea, Solanum nigrum, Veronica perisca, Helianthus tuberosus, Ambrosia artemisifolia var. elatior, Xanthium strumarium, Erigeron annuus, Erigeron canadensis, Conyza sumatrensis, Senecio vulgaris, Bidens frondosa, Tagetes minuta, Taraxacum officinale, Taraxacum laevigatum and Sonchus oleraceus.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.15 no.4
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• pp.23-40
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• 2012

The vascular plants of major sites in Changwon-si were listed 456 taxa (9.3% of all 4,881 taxa of vascular plants); 112 families, 293 genera, 371 species, 2 subspecies, 66 varieties and 17 forms. The vascular plants of Changwon-cheon were listed 133 taxa, Junam reservoir were listed 90 taxa, Seongju-sa were listed 293 taxa, and Yungji park were listed 164 taxa. Divided into 456 taxa; woody plants were 160 taxa (35.1%) and herbaceous plants were 296 taxa (64.9%). Furthermore, therophytes (Th) were 111 taxa (24.3%), hemicryptophytes (H) were 75 taxa (16.4%), megaphanerophytes (MM) were 63 taxa (13.8%) showed high proportional ratio in life form. Based on the list of rare plants by the Korea Forest Service and Korea National Arboretum, 10 taxa (1.8% of all 571 taxa of rare plants); Aristolochia contorta (LC), Euryale ferox (VU), Melothrua japonica (LC), Utricularia pilosa (CR), Hydrocharis dubia (LC), Carex idzuroei (DD), Acorus calamus var. angustatus (LC), etc. Based on the list of endemic plants by the Korea National Arboretum, 10 taxa (3.0% of all 328 taxa of endemic plants); Salix pseudolasiogyne, Philadelphus incanus, Indigofera koreana, Lespedeza ${\times}$ maritima, Stewartia pseudocamellia, Weigela subsessilis, Carex okamotoi, etc. Based on the list of specific plants by floral region were total 43 taxa (4.0% of all 1,071 taxa of specific plants); 4 taxa (Euryale ferox, Hydrocharis dubia, Carex idzuroei, etc.) in class IV, 9 taxa (Ilex crenata, Acer palmatum, Stewartia pseudocamellia, Melothria japonica, Fatsia japonica, etc.) in class III, 3 taxa (Caltha palustris var. membranacea, Nymphoides indica, etc.) in class II, 26 taxa (Cyrtomium fortunei, Chloranthus japonicus, Quercus variabilis, Ulmus parvifolia, Aphananthe aspera, etc.) in class I. Based on the list of naturalized plants, 48 taxa (Rumex crispus, Chenopodium album var. album, Amaranthus patulus, Phytolacca american, Brassica juncea var. integrifolia, Potentilla paradoxa, Robinia pseudoacacia, Euphorbia maculata, Oenothera odorata, Cuscuta pentagona, Veronica persica, Plantago lanceolata, Diodia teres, Helianthus tuberosus, Dactylis glomerata, etc.), naturalization rate was 10.5% of all 456 taxa of vascular plants and urbanization index was 15.0% of all 321 taxa of naturalized plants. Ecosystem disturbing wild plants were 3 taxa (Rumex acetocella, Solanum carolinense, Ambrosia artemisiifolia).