• Korean Journal of Plant Taxonomy
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• v.38 no.4
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• pp.539-545
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• 2008

Distribution of Carex miyabei Franch., formerly considered as an endemic species of Japan, in Korea is verified and reported here. It is distinguished from the morphologically similar species in the same section, such as C. lasiocarpa Ehrh. var. occultans (Franch.) $K{\ddot{u}}k.$, C. drymopila Turcz. ex Steud. var. abbreviata ($K{\ddot{u}}k.$) Ohwi, and C. glabrescens (Kük.) Ohwi, in having long-beaked and acutely 2-toothed perigynia which are densely covered with stout short hairs.

• Journal of Plant Biology
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• v.39 no.2
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• pp.137-144
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• 1996

Scanning electron microscope revealed several taxonomically useful characters in the perigynium and achene epidermis of sect. Siderosticatae (Carex siderosticta, C. ciliatomarginata and C. okamotoi). Mocroscopic characters such as perigynium shape, hair presence or absence, beak shape, nodule situation in perigynium, achene shape, cell wall and silica cone in achene were useful in Carex at the species levels. A key was presented on the basis of features obtained from the examinations.

• Korean Journal of Plant Taxonomy
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• v.50 no.2
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• pp.239-246
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• 2020

Carex nakasimae Ohwi (Cyperaceae) is an endemic species on the Korean peninsula. This study reports a new locality of the species, updating the distribution map. A new population of the species was found during field surveys in 2014 in a small swamp in Haman-gun, Gyeongsangnam-do province, located in the southeastern part of the Korean peninsula. In the flowering and fruiting periods of the species, the population is associated with ca. 91 vascular plant taxa from 40 families. To conserve the endemic species, maintaining the habitat is critical. Furthermore, taxonomic and phylogenetic positions of the species should be clarified to establish biological conservation strategies for the rare, endemic C. nakasimae.

• Korean Journal of Plant Taxonomy
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• v.44 no.1
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• pp.6-8
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• 2014

Carex taihokuensis Hayata (Cyperaceae) is reported from Jin-do (Isl.), SW Korea, for the first time. It belongs to sect. Digitatae, and had been known from Taiwan, China, and Japan. C. taihokuensis is characterized by the staminate terminal spike, bracts with sheath, pilose perigynia, and style base not thickened. We propose the new Korean name, 'Jin-do-sa-cho', after its first collecting place. We also provide a key to species in sect. Digitatae in Korea and Japan.

• Journal of Plant Biology
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• v.13 no.3
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• pp.20-24
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• 1970

In the moor of Mt. Dae-am, the following communities are seen in successive order ranging from the north to the south; the Sanguisorba Argutipens-Carex jaluensis community, the Carex jaluensis-Sanguisorba Argutipens-Sphagnum community, the Sphagnum cymbifolium-Carex jaluensis community, the Carex jaluensis-Sanguisorba Argutipens community and the Calamgrostis Langsdorfii-Ottelia alismoides community. The properties of the peats vary according to the community type, that is, nutrients such as organic matter, total nitrogen, exchangeable K and Mg in the soil tend to decrease as the plant communities shift from the north to the south. The pH range for eleven stations samples was 3.9 to 5.7, and the meadian is 4.6. The content of exchangeable Ca decreases from station to station successively towards the center which is poor in calcium. Presumably there appears to be a clear correlation of Sphagnum cymbifolium with the amount of exchangeable Ca and value of pH produced in bogs by the breakdown or organic residures. The nutrient content of the representative plants of the moor shows no definite relation with the station of their habitats.

• The Korean Journal of Ecology
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• v.10 no.2
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• pp.63-80
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• 1987

Detrended correspondence analysis(DCA) and two way indicator species analysis(TWINSPAN) were applied to Pinus densiflora stands nearby Seoul area in order to classify them into several groups based on herbaceous species and environmental relationships. The eighteen Pinus densiflora stands were perferenially selected, In each stand, 30 to 60 quadrats, (20X20)cm, were randomly estabilished. In each quadrat, all stems for herbaceous plants were recorded by species and their covers were measured. In addition environmental factors such as soil depth, thickness of litter layer, soil compressibility, tree density, basal area, elevation, slope and exposure were detemined for each stand. Four to twelve soil cores were collected and physical and KDICical properties were determined. This survey was conducted form 15, July, 1985 to 22, September, 1985. Analysis of the vegetation and environmental data were performed with DECORANA and TWINSPAN. Stand ordination (DECORANA) and classification (TWINSPAN) based on herbaceous species suggest that the stands can be classified into five groups in terms of herbaceous species composition and environmental relationships. Type I, Type II, Type III, Type IV and Type V were classified to SUBMESIC-CLO-SED-CANOPY (Artemisia keiskeana, Carex nanella), MESIC-CLOSED CANOPY (Spodiopogon sibiricus, Miscanthus sinensis, Carex nanella, Pteridum aquilinum, Melampyrum rosium), SUBMESIC-OPEN CANOPY (Carex nanella, Spodiopogon sibiricus, Miscanthus sinensis), XERIC-CLOSED CANOPY (Carex nanella, Spodiopogon sibiricus, Carex nanella), and XERIC-OPEN CANOPY (Arundinella hirts, Spodiopogon sibiricus, Carex nanella), respectively. These results were consitent with environmental trends on stan ordination. Application of the ordination and classifiaction to Pinus densiflora stands were effective as a approach on obtaining perliminary ecological information.

• Journal of The Korean Society of Grassland and Forage Science
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• v.6 no.2
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• pp.97-102
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• 1986

This investigation was carried out to find out the succession of Carex ferruginea community by PK-fertilization and sheep grazing. The area covered with Caricetum ferrugineae and located at the Bavarian Alps in the southern part of Germany. 1. By the experimental conditions was changed the plant community of Caricetum ferrugineae, however, the influence of PK-fertilization was much more effective than that of sheep grazing. 2. As the species of Carex ferruginea, Melica nutans, Brachypodium sylvaticum, Calamagrostis varia were weak the absorptive ability of nutritive subatance, they almost disappeared due to PK-fertilization. On the other hand, grasses and legumes (Festuca rubra, Agrostis tenuis, Poa trivialis, Trifolium repens) increased by PK-fertilization distinctly. 3. The life forms of plant community at the experimental area covered with Hemicrytophytes of 55% and Geophytes of 40%. But by the PK-fertilization with sheep grazing increased their life forms Hemicryptophytes by 19% and Geophytes decreased by 31%, but in case the sheep grazing without fertilization increased Geophytes by 11% and Hemicryptophytes decreased by 12%. 4. The plant community of Caricetum ferrugineae before the experiment was successived into Festuco-Cynosuretum by PK-fertilization with sheep grazing.

• Proceedings of the Botanical Society of Korea Conference
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• 2001.04a
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• pp.18-18
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• 2001

• Journal of Food Hygiene and Safety
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• v.29 no.4
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• pp.356-362
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• 2014

Allergic diseases have increased rapidly over the past decades, affecting an estimated 20~30% of the population in developed countries. In this study, we investigated whether or not a typical costal sand dune plant Carex pumila (CPE) suppresses the activation of mast cells and IgE-mediated allergic response in vitro and in vivo. As the results, the extract of Carex pumila inhibited antigen-stimulated degranulation in RBL-2H3 cells and Bone marrow-derived mast cells (BMMCs), and IgE-mediated passive cutaneous anaphylaxis (PCA) in mice. CPE also suppressed the production of pro-inflammatory cytokines, TNF-${\alpha}$ and IL-4, in antigen-stimulated mast cells. As its mechanism of action, CPE inhibited the activation of Syk in $Fc{\varepsilon}RI$-mediated signalling pathway, and that of LAT, a downstream adaptor molecule of Syk, in a dose-dependent manner. CPE also suppressed the activation of mitogen-activated protein (MAP) kinases, p38, ERK1/2, JNK, and Akt. Altogether, CPE inhibited mast cell activation and IgE-mediated allergic response by antigen through suppressing the activation of Syk. These results suggest that CPE may be useful for the treatment of allergic diseases.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.9 no.6
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• pp.86-94
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• 2006

This study was to analyze vegetation and soil characteristic, and ordination of Bupleurum euphorbioides community located in Mt. Seorak area, Mt. Sobaek area, and Mt. South Deogyu area. Bupleurum euphorbioides community was classified into Carex lanceolata subcommunity and Chrysanthemum zawadskii var. alpinum subcommunity, and Chrysanthemum zawadskii var. alpinum subcommunity was classified into Calamagrostis arundinacea and Carex breviculmis group. In the study sites, soil organic matter, nitrogen, available phosphorous, changeable potassium, changeable calcium, changeable magnesium concentration, cation exchange capacity, and soil pH were ranged from 9.0~15.2%, 0.32~0.47%, 3.0~8.6ppm, 0.3~0.9me/100g, 0.5~1.5me/100g, 0.2~0.6me/100g, 11.4~16.1me/100g, and 4.3~4.6, respectively. And, soil texture was sandy loam or loam. The Carex breviculmis group of Chrysanthemum zawadskii var. alpinum subcommunity was found in area of high elevation and had high exchangeable K, Ca, and Mg concentration. The Calamagrostis arundinacea group of Chrysanthemum zawadskii var.alpinum subcommunity was found in area of low elevation and had lower exchangeable K, Ca, and Mg concentration than in the other subcommunity. The Carex lanceolata subcommunity was found in area of medium elevation and had medium exchangeable K, Ca, and Mg concentration. The Carex lanceolata subcommunity was located in a path of top the mountain peak, and has been destroyed. We need any action to protect the subcommunity.