• Journal of Plant Biology
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• v.29 no.1
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• pp.19-40
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• 1986

A study on the species description, enumeration and interspecific relationships of genus Filipendula was undertaken for four Korean and two Japanese species. The use of scanning electron miroscope(SEM) has made possible a detailed study of foliar trichomes, pollen grains and fruit surface features. A new method for the preparation of SEM samples was developed in this study. Filipendula glaberrima, F. formosa, and F. korean were reliable endemic species. Among them, F. glaberrima shares many characteristics with F. formosa. F. gloaberrima can be divided into tow types based on leaf, seed, flower and pollen characters. Type I is characterized by ciliated fruits, many branched vascular bundles on the petal, dense trichomes on the leaf vein of abaxial surface, and many foveolate pollen surface. Type II possesses glabrous fruits, a few vascular bundles on the petal, rare trichomes on the leaf vein and a few foveolate pollen surface. The significant taxonomic characteristics in the classification of genus Filipendula are their lengths of fruit stalks, the densities of marginal trichomes of fruits, and textures of stipules.

• Journal of The Korean Society of Clinical Toxicology
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• v.2 no.1
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• pp.27-30
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• 2004

Phytolaccaceae had been used as a pharmaceutical drugs or food in Korea. Nowadays, it is rarely used due to its toxicity, and then, case reports as to poisoning also are rare. Recently, Authors experienced a case of an occurrence in a group intoxication after ingestion of roots of phytolacca american a misidentifying as arrowroot. We report this case with review of phytolacca radix poisoning.

• Journal of Wetlands Research
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• v.11 no.1
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• pp.99-104
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• 2009

Gotjawal forest refers to the forest covering the rocky area of "AA Lava" on Jeju Island of South Korea. In this article it is shown that Gotjawal forest is an internationally important wetland under the Ramsar Convention. Gotjawal forest should be regarded as a wetland because it is a subterranean hydrological system, which is classified as wetland under the Ramsar Convention. And Gotjawal forest is an internationally important wetland because it is the representative wetland type of Jeju region with hydrological importance, and because it supports rare species of plants.

• Korean Journal of Plant Resources
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• v.22 no.1
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• pp.49-70
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• 2009

Floral study on the vegetation of 8 mountains including Taehwa-san, Mugab-san, Haehyeob-san, Guksa-bong, Gwanggyo-san, Samseong-san, Suri-san, and 200m peak neighboring to Mulwang lake was carried out from April to October, 2007. They belong to the middle part of Gyeonggi Province, and located between Lat. $37^{\circ}$13' 31.19" ${\sim}37^{\circ}$33' 3.48", Long. $26^{\circ}$43' 04.1" ${\sim}127^{\circ}$26' 28.38". Vascular plants collected in these areas were total 447 taxa composed of 386 species, 5 subspecies, 46 varieties and 10 forms of 262 genera under 92 families. The area from which the most plentiful plants were found was Mt. Gwanggyo-san. The areas with comparatively excellent vegetation are easy slopes nearby valleys in Mt. Gwanggyo-san, Mt. Suri-san and Mt. Haehyeob-san. Forests of the examined areas are generally mixed of Pinus densiflora and Quercus plants, but herbaceous plants covering soil are becoming nearly extinct by air and soil pollutions except some sites. Families with abundant species are Compositae, Rosaceae, Liliaceae and Graminae, etc. Endemic plants found in these areas are 8 taxa of Clematis brachyura, Euonymus trapococcus, Viola seoulensis, Ajuga spectabilis, Scutellaria insignis, Weigela subsessilis, Aster koraiensis, Aconitum chiisanense and rare and endangered plants are 7 taxa of Arisaema heterophyllum, Iris odaesanensis, Eranthis stellata., Aconitum chiisanense, Prunus yedoensis (cultivar), Viola albida, and Syringa wolfi. As to useful plants, 192 taxa for the edible, 132 taxa for the medicinal, 130 taxa for the ornamental and 11 taxa for the staining were classified respectively. Among 17 taxa of specially designated plants, 5th degree plants are 2 taxa of Iris odaesanensis and Prunus yedoensis (cultivar), 4th degree plants are 2 taxa of Symplocarpus renifolius and Syringa wolfi, 3rd degree plants are 13 taxa of Dryopteris gymnophylla, Juniperus chinensis, Betula chinensis, Betula davurica, Diarrhena fauriei, Aconitum longecassidatum, Eranthis stellata, Spiraea salicifolia, Acer palmatum, Vaccinium koreanum, Scutellaria insignis, Weigela florida and Adoxa moschatellina.

• Journal of Korean Society of Forest Science
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• v.106 no.2
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• pp.130-149
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• 2017

The subalpine zone which is vulnerable to climate change could be functioning as a habitat for northern plant species especially in the Korean peninsula. In this study, classification of phytosociological community type and investigation on flora of vascular plants of Daecheongbong area in Mt. Seorak were carried out in order to provide a basic information for an ecological restoration and management of the vegetation through community ecological approach. Vegetation data were collected from 31 of quadrates from May to October, 2016. We analyzed vegetation types with phytosociological method, importance value with Curtis & McIntosh method, CCA using PC-ORD program tool, and flora of vascular plants. As a result, the forest vegetation was classified into Abies nephrolepis community. The community was divided 3 groups such as Pinus pumila group, Rhododendron brachycarpum group and Angelica decursiva group. Therefore, the vegetation had 3 kinds of units. The differential species group, it was classified into total of 7 species group units including Thuja koraiensis and Smilacina bicolor differential species group. The mean importance percentage (MIP) in VU 1 was shown Pinus koraiensis (24.1), A. nephrolepis (23.6) and Betula ermanii (10.5), and in VU 2, it was P. koraiensis (26.2), A. nephrolepis (20.8) and B. ermanii (10.5), and in VU 3, it was P. koraiensis (22.2), A. nephrolepis (16.4), B. ermanii (13.5) in the order, respectively. As for importance values of P. koraiensis and A. nephrolepis representative competition species, were different at each layers. The former (46.7) was higher than the latter (26.1) in tree layer, but the latter was higher than the former in subtree and, shrub and herb layers of VU 1. VU 2 and VU 3 also indicated the same tendency. P. pumila group and A. decursiva group were shown to have positive correlation with altitude and present species, respectively. The designated as the endemic plant was 11 taxa and, as the rare plant 24 taxa and 62.5% of vascular plant was northern plant species. It is necessary to continue further long-term monitoring of 3 vegetation units, IV of main competition species (P. koraiensis and A. nephrolepis) with stratum and main specific species (rare plants and endemic plants) considering vegetation science and, population and community ecology approaches.

• Korean Journal of Environment and Ecology
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• v.36 no.3
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• pp.220-256
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• 2022

The most important thing for conserving plant diversity in an area is to make an overall inventory of the plant species inhabiting the area. In particular, limestone areas are known for their high plant diversity and distribution of specific plants. Despite that, only a few have been designated as protected areas. This study investigated the vascular plants distributed in Goyangsan Mtn. and Munraesan Mtn., located in limestone areas of the central part of the Korean Peninsula. A field survey was conducted eight times from April to October 2021. As a result, we identified a total of 654 taxa comprising 113 families, 357 genera, 592 species, 15 subspecies, 44 varieties, and 3 formulas. They included four endangered wild plant species: Astilboides tabularis, Eleutherococcus senticosus, Cypripedium macranthos, and Epilobium hirsutum. Endemic plants in Korea were identified as 32 taxa. Floristic target plants were identified as 168 taxa, specifically 5 taxa of grade V, 41 taxa of grade IV, and 36 taxa of grade III. The red data plants included 2 taxa as "Endangered (EN)", 7 taxa as "Vulnerable (VU)", and 7 taxa as "Near threatened (NT)". A total of 41 taxa of naturalized plants were identified, and 4 of them were invasive alien plants. The surveyed vicinity of Goyangsan Mtn. and Munraesan Mtn. showed high plant diversity and contained core habitats for distribution of an endangered wild plant, Astilboides tabularis,in the limestone area. Moreover, both mountains contained a small population of Cotoneaster integerrimus. These findings confirm that the area has conservation values. Therefore, we propose to identify areas with high plant diversity and designate them as special protected areas.

• Korean Journal of Environment and Ecology
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• v.26 no.5
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• pp.635-653
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• 2012

Vascular plants of Oruem in region of Jeju-City were investigated 454 taxa totally; 116 families, 301 genera, 359 species, 3 subspecies, 78 varieties and 14 forms. In the studied Oruems in region of Jeju-City within altitude 800m, evergreen tree forests does not range and a lot of Pines thunbergii forest and Cryptomeria japonica and Chamaecyparis obtusa plantation forest were. The endemic species of Oruem in region of Jeju-City were 14 taxa such as Asarum maculatum, Hepatica insularis, Cardamine glechomifolia etc. The floristics degree categorized by the specific distribution of plant species were total 116 Taxa, that is, V grade species Magnolia kobus, Aconitum japonicum subsp. napiforme, Ligularia taquetii etc, 6 kinds be, IV grade species Rubus ribisoideus, Ligustrum salicinum, Carex macrandrolepis etc, 16 kinds be, III grade species Illicium anisatum, Hydrangea petiolaris, Rubus schizostylus etc, 37 kinds be, II grade species Pseudostellaria coreana, potentilla dickinsii, Euonymus pauciflorus etc, 6 kinds and I grade species Sphenomeris chinensis, Pteris multifida, Machilus thunbergii etc, be. 51 kinds were confirmed. Rare and Endemic Plant Species of Korea Forest Service were 11 taxa such as Asarum maculatum, Aconitum japonicum subsp. napiforme and Magnolia kobus etc. Naturalized plant were confirmed 31 taxons with Rumex acetosella, Hypochaeris radicata and Sisyrinchium atlanticum etc.

• Journal of Wetlands Research
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• v.18 no.4
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• pp.331-341
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• 2016

A small irrigation pond for a rice paddy field is a very important refuge for aquatic insects and plants. To reveal environmental factors determining species composition of aquatic insect and plant communities, we analyzed water chemistry and connection between pond and surrounding in five types of irrigation ponds based on water source and connection in CCZ of South Korea: stagnation, exchange-stagnation, spring, stagnation-spring, and exchange-spring types. The stagnation type had the most stable water chemistry among the 16 irrigation ponds studied, and the spring type had the most variable water chemistry. Anion content was highest in the stagnation type, and cation content was highest in the exchange-stagnation type. 228 taxa including 63 wetland plants and 95 aquatic insect taxa were recorded. Six rare plant species and four rare aquatic insect species were identified. The stagnation-spring type had the highest species richness. There was no correlation between size and species richness. Multivariate analyses showed distinctive species assemblages among the irrigation pond types. This would indicate that water chemical change at annual cycle and connection influenced on the species assemblages in irrigation pond. In additional, irrigation pond contributes to regional biodiversity in agricultural areas, as irrigation pond provides heterogeneous communities for the freshwater ecosystem.

• Journal of Bio-Environment Control
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• v.19 no.4
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• pp.246-250
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• 2010

This study was conducted to find out the propagation method of a rare variety Daphne kiusiana Miq. in Korea through softwood cuttings. Daphne kiusiana Miq are the evergreen broad leaf tree which have lived in the southern part of Korea. The flowering time of Daphne kiusiana Miq is early spring and the flower has an attractive fragrance. Generally, plants are dioecious and only the male plants are found in Korea. Propagation by seed is very difficult in this tree. Softwood cuttings were taken to establish an efficient propagation method in Daphne kiusiana Miq Cuttings were grown in perlite:vermiculite (1 : 1), perlite, vermiculite, sand rooting media under shaded greenhouses during summer in 2007. The rooting rates of cuttings were 86.7%, 95%, 75% and 95% in perlite:vermiculite (1 : 1), perlite, vermiculite and sand media, respectively. Softwood cuttings taken on July and rooting at $27^{\circ}C$ were significantly improved the growth and rooting rates. Softwood cutting can be an effective means of propagation in Daphne kiusiana Miq.

• Korean Journal of Environment and Ecology
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• v.18 no.4
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• pp.382-391
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• 2004

This study was conducted to establish the effective and systematic counter plan of conservation by analyzing vegetation on Korean endemic plants and rare and endangered plants, Abeliophyllum distichum, habitats and to present the raw data and direction on counter plan of restoration. The dominant species of tree layers were Platycarya strobilacea(Goesan-gun Chujeom-ri I), Pinus densiflora(Goesan-gun Songdeok-ri II and Yulji-ri III), Robinia pseudo-acacia(Yeongdong-eup Maechon-ri IV), Quercus variabilis(Jincheon-gun Yongjeong-ri V) and Pinus densiflora$.$Quercus variabilis(Buan-gun Junggye-ri Ⅵ). Subtree layers were dominated by Quercus dentata(1st site), Quercus serratu(2nd site), Quercus acutissima(3rd site), Robinia pseudo-acacia(4th site), Zelkova serrata(5th site) and Quercus variabilis(6th site). And the dominant species of shrub layers were Lindera obtusiloba(1st and 5th site), Lespedeza bicolor(2nd site), Stephunandra incisa(3rd site), Quercus aliena(4th site) and Rhododendron schlippen-bachii(6th site). The dominant species of herb layers were surveyed Humulus japonicus$.$Pueraria thunbergiana(1st site), Oplismenus undulatifolius(2nd and 4th site), Carex siderosticta$.$Pueraria thunbergiana(3rd site), Streptolirion cordifolium$.$Humulus japonicus(5th site) and Sasa borealis(6th site). Among the surveyed sites, the Goesan-gun Yulji-ri supremely abounded in species and individuals, and there was surveyed each 21 species and 116 individuals. As well, this site showed the highest H'(1.123) and H'$_{max}$(1.322). Therefore, Goesan-gun Yulji-ri formed diverse vegetation and Yeongdong-eup Maechon-ri and Buan-gun Junggye-ri showed relatively poor vegetation.ation.