Gyu Young Chung

• Andong National University

The alien plant Hedypnois rhagadioloides (L.) F. W. Schmidt was found at Busan New Port. The genus Hedypnois Mill, to which this species belongs, is a new record in the flora of the Republic of Korea; it is related to the genera Hypochaeris L. and Picris L. Hedypnois but can be distinctly distinguished from these two genera by its pappus, which con...

This study confirmed the taxonomic significance of achenes by observing and comparing the morphology and anatomical characteristics of 13 taxa of the genus Boehmeria in Korea. The results confirmed that the achenes studied here are the drupe-like fruit type with mucilage in the exocarp, and during the fruiting season, the perianth persists on the p...

Aster magnus Y. N. Lee & C. S. Kim, originally described from Jeju-do, Korea in 1998, was not validly published because two gatherings were simultaneously indicated as types in the protologue. The name is validated here by designating one new collection kept in Andong National University herbarium (ANH) as the holotype

COLE TCH, CHUNG GY 정규영, SON DC 손동찬 (2024) 국화과 주요 속의 계통 © Cole, Chung, Son 2024 (CC-BY), Korean version of: COLE TCH (2022) ASTERACEAE – Phylogeny of Selected Genera of Composites (AstPP) • 국화과의 주요 속을 선정함 • 분자계통학적 연구에 기반한 가설 계통수 (참고문헌 참조) • 절간 길이는 실제 시간의 척도를 반영하지 않은 인위적인 것임 • 지리적 분포는 POWO (Plants of the World Online)와 Anderberg et al. (2007)을 참조함 •...

COLE TCH, MEDAN D, SON DC 손동찬, CHUNG GY 정규영 (2024) 갈매나무과의 계통 © COLE, MEDAN, SON, CHUNG 2024 (CC-BY), Korean version of: COLE TCH, MEDAN D (2024) RHAMNACEAE Phylogeny Poster (RhamPP) • 갈매나무과의 58개속에 대한 계통 발생을 나타냄 • Qin et al. (2023)의 핵 계통자료에 기반한 가설 계통수 • 절간 길이는 실제 시간의 척도를 반영하지 않은 인위적인 것임 • 과와 각 속의 특징 및 보다 자세한 설명은 Medan/Schirarend (2004)를 참조할 것 • 종의 수...

There has been no doubt over the past approximately 200 years that Castan-opsis cuspidata is distributed on the Korean Peninsula. Nevertheless, our empirical observations prompt us to question its presence in this region. To clarify whether C. cuspidata occurs on the Korean Peninsula, we investigated specimens from herbaria, literature related to i...

i>Parasenecio pentaphylla , a new species of the genus Parasenecio from Mt. Ilwol-san, Ilwol-myeon, Yeongyang-gun, Gyeongsangbuk-do, Korea, is described and illustrated here. In Korea, this species has been recognized as P. adenostyloides , known to be a Japanese endemic species. However, it is clearly distinguished from P. adenostyloides by its in...

A newly recorded species, Boehmeria nakashimae Yahara, is confirmed for the first time to be distributed on forest edges on Jejudo Island, Korea. This species is known to be endemic to northern Kyushu, Japan. It is characterized by ovate to broadly ovate, ellipticovate, or sub-orbicular middle leaf shapes, serrulate-dentate and uniform margins, 17–...

Following recent taxonomic, distributional, and nomenclatural revisions, an updated checklist of the endemic plants on the Korean Peninsula is needed. This study provides an updated checklist of vascular plants endemic to the Korean Peninsula and describes their distribution within administrative provinces. The revised checklist includes 373 endemi...

Paraphlomis koreana (Lamiaceae) was newly named and added to Korean flora in 2014. Paraphlomis belongs to the tribe Paraphlomideae, along with Ajugoides and Matsumurella. However, a recent study has suggested that P. koreana is morphologically similar to Matsumurella chinensis, making them difficult to distinguish from each other. Therefore, we aim...

i>Carex brevispicula (Cyperaceae) is endemic to Korea and is characterized by constricted achenes, short lateral spikes, and awned staminate and pistillate scales. The species classified in sect. Mitratae occurs throughout South Korea, perennating on mountains and/or rocky slopes under half shadow conditions. Meiotic chromosomes of the species were...

Since 2016, the Korea National Arboretum has funded “Flora of Mongolia” project, which focuses on vascular plants in Mongolia. Our initial step is undertaking field surveys in various vegetation types in northern, eastern and western parts of Mongolia. Based on six years field surveys, we collected approximately 15,000 herbarium collections which w...

Here we confirm the first accurate distributional record of Lemna turionifera Landolt (Lemnoidae, Araceae) in Korea. The nomenclator, Elias Landolt (1926–2013), had collected the species in Korea, but to date there have been no other identifiers of this species. A Lemna species collected from Andong showed the key characters of L. turionifera: pigm...

In this book, we provided the wild species photos of 1,159 species belonging to 455 genera and 100 families. The majority of species photos belong to the angiosperm (1,132 species) along with gymnosperms (10 species), ferns and fern allies (2 species) and lycophytes (2 species). Furthermore, photos of 35 endemic species were provided in this book....

Clematis pseudotubulosa (Ranunculaceae), a new species from Gyeonggi-do in the Republic of Korea, is described and illustrated. The new species is morphologically similar to C. takedana but differs in its leaves, which are always ternate with shallowly lobed leaflets (vs. 1-pinnate with deeply lobed three to five leaflets), and its oblong-shaped fl...

Aster altaicus var. uchiyamae, a Korean endemic plant, should be treated as a species rank because it is clearly distinguished from A. altaicus var. altaicus by the morphological characteristics of the plant habit, leaf width, and head size. Nevertheless, when A. altaicus var. uchiyamae was treated as a species rank, the epithet uchiyamae was unava...

We here sequenced the complete plastid genome (plastome) of Vaccinium japonicum (Ericaceae), a deciduous broad-leaved shrub endemic to East Asia. This species has considerable practical economic value. The plastome of V. japonicum is assembled as a single contig (187,213 bp). A large single copy (104,637 bp) and a small single copy (3,000 bp) of th...

Somatic chromosome numbers were determined for 15 taxa belonging to six genera of Caryo-phyllaceae in South Korea, Pseudostellaria (three species), Stellaria (three species), Dianthus (one species), Gypsophila (one species), Lychnis (two species) and Silene (five species), and were compared with previously reported chromosome numbers for each genus...

으아리속(Clematis L.) 식물은 덩굴성 초본 또는 목본으로 꽃잎은 없으며, 암술대의 털은 깃털모양으로 달리고 숙존하며, 열매는 수과인 특징을 갖는다. 전 세계적으로 약 300여종이 분포하며, 국내에는 약 20분류군이 생육하는 것으로 알려져 있다. 국내 분포하는 종들 가운데 대구으아리(C. taeguensis)는 이영노에 의해 대구 범물동에서 채집된 표본을 근거로 신종 보고된 식물이다. 국내에서 본 종은 한국특산으로 취급되고 있으나, 근연분류군들과 형태학적으로 매우 유사하여 본 종의 분류학적 실체에 대한 많은 이견이 존재하고 있는 실정이다. 본 연구는 한국특산식물인 대구으아리의 분류학적 실체를 규명하기 위한 사전연...

Cynanchum L. in the subfamily Asclepiadoideae (Apocynaceae) includes four recognized species on the Korean peninsula, two of which are native to South Korea. However, the species ranges in South Korea are poorly defined. During a field survey, we discovered C. thesioides, previously unrecorded in South Korea, in Gimpo-si, Gyeonggi-do, and found an...

A taxonomic revision of Korean Ligustrum species is presented based on critical observations of wild populations and herbarium specimens. Species delimitations were re-evaluated on the basis of morphological characters, such as plant height, texture and shape of leaf, shape of inflorescence, shape of drupe and seed, and texture of endocarp. From th...

Field surveys were conducted in the northern part of Mongolia in 2017 and 2018. Vascular plants floristic data are based on collections from the study area and over 800 new collections made in this study. In total, 289 taxa (8 subspecies and 6 variates) were identified, representing 173 genera from 60 families of vascular plants. The families most...

A record of Silene alexandrae B. Keller converts it to a new species for Mongolia. S. alexandrae was found on the Khavtag Mountain ranges in Dzungarian Gobi region. Data about previous records of this species in Mongolia are discussed and rejected. Characters distinguishing Silene alexandrae from close species S. altaica Pers. are given. We noted a...

A floristic study of Eastern Mongolian Steppes has been conducted during the growing season of 2014 and continued in 2017, when we focused more on the Numrug Strictly Protected Area. Major objectives of this study were to assess floristic diversity of Eastern Mongolian Steppes and to review the conservation status of some endangered, rare, and very...

Mongolia is unique in that it contains a great range of natural ecosystems within its borders. For example, the southern edge of the Siberian Taiga meets with the northern fringe of the Central Asian steppe and desert. A continental climate with sharp fluctuations characterizes the vegetation of Mongolia, and a total of 3,160 species of vascular pl...

Munkhkhairkhan mountain area is a unique highland ecosystem, which has a diverse regional alpine flora. This mountain habitat is located at the overlap of different floristic regions: on its western side Kazakhstan–Turan flora is dominating and on the eastern side East-Asian flora is observed. It is known that the whole area has a large number of e...

This study was carried out to elucidate the distribution of vascular plants and their usefulness of Mt. Janggunbong (1,136 m) in Bonghwa-gun, Gyeoungsangbuk-do. The vascular plants, collected 15 times from 2006 to 2015, consisted a total of 462 taxa; 82 families, 279 genera, 397 species, 2 subspecies, 55 varieties, 8 forms. 10 taxa of the Korean en...

The taxonomic status and scientific names of Artemisia gmelinii and its allied taxa have long been debated. To provide correct names and taxonomic status, A. gmelinii and its allied taxa were reviewed in this study based on morphological characters. After a comparison of original descriptions and type specimens, the names of A. freyniana f. discolo...

This study was carried out to elucidate the distribution of vascular plants and their usefulness of Mt. Cheongnyangsan (870 m) in Gyeongsangbuk-do. The vascular plants that were collected 16 times 2006 and 2014 consisted a total of 614 taxa; 97 families, 330 genera, 541 species, 3 subspecies, 61 varieties and 9 forms. For the Korean endemic plants,...

This book included some endemic plant species of East Asia (with photos).

The palynological characters of 14 taxa of 4 genera (Cynanchum, Metaplexis, Tylophora, Marsdenia) in Asclepiadoideae were observed and measured using SM and SEM. The orientation and granulate surface patterns of the pollinia were important characters for delimitating the genera. The position of the attachment of the translator arms to the pollinia,...

This study was carried out to survey the flora of the vascular plants of Ulleungdo Island. Fieldwork related to the study was carried out 55 times from 2007 to 2011. The results of the study showed that the flora of Ulleungdo Island consisted of a total of 494 taxa, with 93 families, 313 genera, 462 species, 6 subspecies, 52 varieties and 4 formas....

A new species, Paraphlomis koreana S.C.Ko et G.Y.Chung, from Korea is described and illustrated. The species is similar to P. albida Hand.-Mazz. in general vegetative characters and white corollas, but the new species is distinguished by its smaller stature, equally toothed 10-veined calyces, and pink-spotted lower corolla lips. P. koreana S.C.Ko e...

This study was carried out to elucidate the distribution of vascular plants and their usefulness of Mt. Myeonsan (1,245 m) and Myobong (1,168 m) in Gangwon-do and Gyeongsangbuk-do. The vascular plants that were collected 15 times from April 2012 to October 2013 consisted a total of 551 taxa; 96 families, 314 genera, 489 species, 3 subspecies, 54 va...

A new species, Paraphlomis koreana S.C.Ko et G.Y.Chung, from Korea is described and illustrated. The species is similar to P. albida Hand.-Mazz. in general vegetative characters and white corollas, but the new species is distinguished by its smaller stature, equally toothed 10-veined calyces, and pink-spotted lower corolla lips. P. koreana S.C.Ko e...

Asteraceae exhibit great species diversity and economic importance, containing about 1,620 genera with more than 23,500 species worldwide. In South Korea, about 290 species in 95 genera occur, the largest family in Korean vascular plants. We investigated somatic chromosome numbers of 121 Korean native Asteraceae taxa to figure out chromosome number...

Three unrecorded species, Carex chungii Z. P. Wang, C. tsushimensis (Ohwi) Ohwi, C. multifolia Ohwi were found in Korea. C. chungii Z. P. Wang was found in Is. Wan and Is. Geogeum, Jeollanam-do and Namhae, Gyeongsangnam-do. This species is distinguished from C. leuchoclora Bunge by achenes constricted above in the middle. C. tsushimensis (Ohwi) Ohw...

The morphological characters and scientific names of Korean Artemisia sect. Absinthium were reviewed based on the type specimen, the original description, observation of the living materials and voucher specimens. The form of the habitat, the structure of underground, the leaf shape and capitulum features were valuable characters in identifying the...

Somatic chromosome numbers of 28 Korean native species in the buttercup family are observed and analyzed. The plants include 10 genera with seven endemic taxa to the Korean peninsula, and most of them are the first reports from Korean populations. In particular, the chromosome numbers for the two taxa are reported for the first time: Clematis fusca...

The taxonomic identity and distribution of Artemisia integrifolia L. were reviewed based on the specimens collected from Bukchangpyeong, Onseong-gun, Hamgyeongbuk-do (in KYO), Hamrimsan, Gyeongheung-gun, Hamgyeongbuk-do (in KYO) and Hoeyang-gun Gangwon-do (in SKK). A. integrifolia is distinguishable from A. viridissima and A. subulata by middle cau...

Aiming to determine the taxonomic identity of Gang-hwa-yak-ssuk as a cultivated plant, this study analyzes ITS sequences and compares their external morphologies with the genus Artemisia, which have a similar external morphology. Thus far, we have considered A. indica as the original plant of Gang-hwa-yak-ssuk, but Gang-hwa-yak-ssuk is better group...

The palynological study of 31 taxa of Korean Artemisia L. was carried out to evaluate their taxonomic characteristics and to determine the relationships among the taxa. The size and shape of the pollen are not used as characteristics to classify the taxa of Korean Artemisia L., but the granule distribution ands pinule connection on the exine were u...

The vascular flora in the Mt. Cheongtae area, located Pyeongchang-gun in Gangwon-do, were surveyed 14 times from April of 2008 to October of 2011. The result of this survey revealed 663 taxa in total, comprising 89 families, 342 genera, 577 species, 6 subspecies, 73 varieties and 7 forms. In the flora of this area, 19 taxa were Korean endemic plant...