• Title/Summary/Keyword: FLORISTIC STUDY

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Floristic Study of Namhansanseong (Gwangju-si, Gyeonggi-do) in Korea (남한산성(경기도 광주시)의 관속식물상)

  • Kwon, Seog Woo;Kim, Jung-Hyun;Kim, Tae-Sung;Park, Sung-Ae;Yoon, Chang-Young
    • Korean Journal of Plant Resources
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    • v.35 no.4
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    • pp.541-563
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    • 2022
  • This study aimed to elucidate the distribution of vascular plants in Namhansanseong (Gwangju-si, Gyeonggi-do), Korea. The results of 30 field surveys from June 2019 to June 2020 identified 568 total taxa, representing 513 species, 10 subspecies, 40 varieties, 3 forms, and 2 hybrids in 335 genera and 107 families. Among them, 17 taxa were endemic plants to Korea, and one taxon were endangered plant and three taxa were red list plants. The floristic target plants amounted to 63 taxa, specifically one taxon of grade V, seven taxa of grade IV, 12 taxa of grade III, 14 taxa of grade II, and 29 taxa of grade I. And 66 taxa were northern lineage plants. Alien plants were recorded a total of 61 taxa with a Naturalized Index of 10.7%, the Urbanization Index was calculated to be 9.8%. As the result of comparison with previous studies, in this study a total of 213 taxa were newly identified representing 187 species, three subspecies, 19 varieties, one form, and two hybrids in 161 genera and 66 families.

Floristic study of Sonjukdo Island(Yeosu-si), Korea (손죽도(여수시)의 관속식물상)

  • Jung-Hyun Kim;Seog Woo Kwon;Sung-Ae Park;Narae Yun;Bo-Mi Nam
    • 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.

Unrecorded liverwort species from Korean flora II

  • Choi, Seung Se;Bakalin, Vadim A.;Kim, Chul-Hwan;Sun, Byung-Yun
    • Journal of Species Research
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    • v.1 no.2
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    • pp.218-223
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    • 2012
  • While preparing a floristic study of Korean hepatics, we discovered four unrecorded species collected from Mt. Geumo, Donggang river, Mt. Deokhang, and Mt. Naebyeon in Korea. Plagiochila shangaica Steph., Porella stephaniana (C. Massal.) S. Hatt., Porella chinensis (Steph.) S. Hatt., Solenostoma horikawanum (Amakawa) V$\acute{a}\check{n}$a, Hentschel & J. Heinrichs are reported for the first time in Korea here.

Floristic Study of Mt. Seounsan in Korea (서운산 일대의 관속식물상)

  • Jang, Hyun-Do;Oh, Ami;Sim, Sunhee;Leem, Hyosun;Han, Seahee;Yang, Sun-Gyu;Oh, Byoung-Un
    • Korean Journal of Plant Resources
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    • v.30 no.4
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    • pp.435-449
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    • 2017
  • A floristic study on the vascular plants from Mt. Seounsan region, which ranges from Seoun-myeon, Anseong-si, Gyeonggi-do to Baekgok-myeon, Jincheon-gun, Chungcheongbuk-do, was conducted 9 times in total, from April 2014 to October 2015. Based on the voucher specimens, it was revealed that the vascular plants in this region comprised 501 taxa: 97 families, 306 genera, 439 species, 5 subspecies, 51 varieties, and 6 forma. Among these plants, 185 taxa were recorded for the first time from this region. 8 Korean endemic species including Asarum patens (K.Yamaki) B.U.Oh, Scutellaria insignis Nakai, and Weigela subsessilis (Nakai) L.H.Bailey were found in this region. 5 taxa of rare plants designated by the Korea Forest Service, including Iris ruthenica KerGawl., Leontopodium leontopodioides (Willd.) Beauverd, and Tricyrtis macropoda Miq., were also found. 11 taxa of floristic regional indicator plants in the $3^{rd}$ to the $5^{th}$ degrees were identified. In addition, 46 taxa of naturalized plants were recorded, and 2 taxa of ecosystem disturbance plants, which were Ambrosia trifida L. and Aster pilosus Willd., also found.

Floristic study of Mt. Baekasan (백아산의 식물상)

  • Sun, Eun-Mi;Kim, Byeol-Ah;Son, Hyun-Deok;Jeong, Jeong-Chae;Im, Hyoung-Tak
    • Korean Journal of Plant Taxonomy
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    • v.47 no.3
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    • pp.236-263
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    • 2017
  • This study presents a discussion of vascular plants found on Mt. Baekasan, Hwasun-gun, Jeollanam-do, based on specimens collected during 32 separate field trips amounting to a total of 36 days conducted between May of 2011 and October of 2016. There are 651 taxa on Mt. Baekasan, consisting of 109 families, 366 genera, 576 species, 5 subspecies, and 70 varieties. Twelve plants endemic to Korea were found, including Cirsium setidens (Dunn) Nakai and Scutellaria insignis Nakai. There are a total of 61 taxa of floristic regional indicator plants specially designated by the Ministry of the Environment. Rare plants such as Jeffersonia dubia (Maxim.) Benth. & Hook. ex Baker & S. Moore in Mt. Baekasan are 17 taxa in total, and red list plants number 8 taxa, including Cremastra variabilis (Blume) Nakai ex Shibata. Nine calciferous plants were found, including Asplenium ruprechtii Sa. Kurata, Ulmus davidiana var. japonica (Rehder) Nakai and Morus cathayana Hemsl. Thirty-three naturalized plants were also found, including Ambrosia artemisiifolia and Rumex acetosella.

Floristic study of Jeonggwangsan Mt. (Yongin, Korea) (정광산(용인시)의 관속식물상)

  • JEON, Ji-Hyeon;CHO, Myong-Suk;GIL, Hee-Young;KIM, Seon-Hee;JUNES, Petra;SEO, Hee-Seung;KIM, Seung-Chul
    • Korean Journal of Plant Taxonomy
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    • v.49 no.1
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    • pp.70-89
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    • 2019
  • In this study, we investigated the flora of Jeonggwangsan Mt. (Yongin, Korea) from May of 2015 to September of 2016. Through 14 independent field investigations, we identified a total of 367 taxa of vascular plants, including 89 families, 234 genera, 323 species, six subspecies, 34 varieties, and four formae. Eight taxa were endemic to Korea, while 27 were naturalized in Korea. Nineteen taxa were the floristic regional indicator plants in Korea: four in Rank VI, four in Rank III, two in Rank II, and nine in Rank I. A total of 59 taxa were designated as controlled Korean biological resources, requiring special permission for export to outside countries. Two taxa were listed on the Red List of Korea, including one Near Threatened (NT) taxon (Hololeion maximowiczii Kitam.) and one Least Concern (LC) taxon (Iris minutoaurea Makino).

Floristic Study of Juwangsan National Park in Korea (주왕산국립공원의 관속식물상)

  • Jang, Hyun-Do;Leem, Hyosun;Han, Seahee;So, Soonku
    • Korean Journal of Plant Resources
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    • v.32 no.4
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    • pp.379-406
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    • 2019
  • A floristic study on the vascular plants from Juwangsan National Park was conducted 13 times in total, from March to October 2017. Based on the voucher specimens and pictures, it was revealed that the vascular plants in this region comprised 758 taxa: 112 families, 399 genera, 672 species, 4 subspecies, 72 varieties, and 10 forma. Among these plants, 221 taxa were recorded for the first time from this region. The taxa in category II of endangered plants designated by the Korean Ministry of Environment were two taxa, including Eleutherococcus senticosus (Rupr. & Maxim.) Maxim. and Epilobium hirsutum L. The rare plants numbered 5 taxa designated by National Institute of Biological Resources were also found. 20 taxa of Korean endemic plants including Corydalis alata B.U.Oh & W.R.Lee, Iris odaesanensis Y.N.Lee, and Scrophularia cephalantha Nakai were investigated in this region. 40 taxa of floristic regional indicator plants in the 3rd to the 5th degrees were identified. Naturalized plants of 55 taxa were recorded, and 3 taxa of ecosystem disturbance plants, which were Ambrosia artemisiifolia L., Aster pilosus Willd., and Lactuca scariola L., also found.

Floristic study of Mt. Seongdeok (Ganghwa-gun) in Korea (성덕산(강화군)의 관속식물상)

  • Jung-Hyun Kim;Sung-Ae Park
    • Korean Journal of Environmental Biology
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    • v.40 no.4
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    • pp.615-630
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    • 2022
  • This study was conducted to investigate the flora of Mt. Seongdeok (Ganghwa-gun) in Korea. From the results of nine field surveys from March 2020 to July 2022, a total of 445 total taxa, representing 397 species, nine subspecies, 35 varieties, two forms and two hybrids were identified, which were placed in 273 genera and 93 families. The plant formation of Mt. Seongdeok is a deciduous broad-leaved and conifer mixed forest, which is common in the middle part of the Korean Peninsula. Most of the mountain is covered by a young secondary forest, which is mainly composed of Quercus ssp. and Pinus ssp. Among them, five taxa were endemic to Korea, one taxon were endangered plant and two taxa were red list plants. The floristic target plants amounted to 27 taxa, specifically one taxon of grade V, four taxa of grade III, seven taxa of grade II, and 15 taxa of grade I. And 43 taxa were northern lineage plants. A total of 46 species of alien plants were identified, with a Naturalized Index of 10.3%, an Urbanization Index of 11.7%, and six plants that disturbed the ecosystem. Our results provide basic data on vascular plants flora, and plant diversity and distributional changes.