Ussuri

Ussuri

Numbers

Reg. code	Reg. name	Number of			Mid point
Reg. code	Reg. name	genera	families	species	Latitude	Longitude
F18	Ussuri	805	165	2512	46.0	135.5

Description
The Ussuri region lies on the southern side of the lower Amur River, with its western boundary lying on the Chinese-Russian border along the Ussuri River, one of the biggest tributaries of the Amur. On the east, the region borders the Sea of Japan. The Sikhote-Alin mountain range runs continuously throughout the region. On the eastern side it has a steep escarpment to the sea, and on the western side it has gentler slopes that reach the Ussuri-Khanka lowland. The highest elevation is 2077 m, on Mt. Tardoki-Yani of the Sikhote-Alin range.

The climate of the region is submaritime, with warm Pacific air masses common in the summer but cold Siberian-Chinese air masses prevailing in winter. The Sikhote-Alin range blocks the cold Siberian air from reaching the coast and causes a temperature difference of 10 C between the interior and the coast. In the summer the mountains prevent the warm interior air masses from reaching the coast. The mean temperature of the coldest month (January) ranges from -20 C in the interior to -10 C on the coast. In summer, the warmest month is August on the coast (monthly mean 20 C) but July in the warmer interior (monthly mean 25 C). Mean annual temperature ranges from -0.4 C in the north to 5.2 C in the south. Annual precipitation ranges from 600 mm in the interior to 900 mm on the southeastern coast, with a profound orographic effect, particularly on the southeastern slopes.

Endemic species
Achyrophorus crepidioides, Aconitum desoulavyi, A. saxatile, A. sichotense, A. stoloniferum, Agrimonia gorovoii, A. granulosa, Agrostis sichotensis, Allium prokhanovii, A. spirale, Artemisia pannosa, Aruncus parvulus, Astragalus austrosachalinensis, Calamagrostis chassanensis, Caltha silvestris, Carex austroussuriensis, C. cenantha, C. charkeviczii, C. holotricha, C. mandshurica, C. pulchrifolia, Chrysosplenium schagae, Cirsium coryletorum, Clematis sichotealinensis, Cortusa discolor, Corydalis ussuriensis, Dendranthema coreanum, D. maximowiczii, Diarrhena koryoensis, Dimeria neglecta, Dontostemon intermedius, Draba cardaminiflora, Dracocephalum multicolor, Elsholtzia amurensis, Eriocaulon desulavii, Festuca amurensis, F. blepharogyna, Flueggea ussuriensis, Fraxinus densata, Girardinia septentrionalis, Gnaphalium rossicum, Hylotelephium eupatorioides, H. ussuriense, Iris vorobievii, Kitagawia eryngiifolia, Leontopodium palibinianum, Lepisorus kolesnikovii, Ligularia alticola, L. calthifolia, L. sichotensis, L. splendens, L. vorobievii, Lycopus alissoviae, L. charkeviczii, L. hirtellus, L. sichotensis, Megadenia speluncarum, Melica komarovii, Microbiota decussata, Mimulus stolonifer, Najas orientalis, Neottia ussuriensis, Orostachys vyschinii, Oxytropis charkeviczii, O. ruthenica, Paraixeris chelidoniifolia, Poa vorobievii, Polygonatum acuminatifolium, Polystichum subtripteron, Potentilla vorobievii, Pseudostellaria rigida, Rhododendron fauriei, Ribes fontaneum, Sanguisorba magnifica, Saussurea fulcrata, S. kolesnikovii, S. kurentzoviae, S. petiolata, S. porcellanea, S. sovietica, S. vyschinii, Saxifraga ascoldica, S. serotina, S. sichotensis, Scirpus oligosetus, Scutellaria ternejica, Silene obscura, S. olgae, Stachys komarovii, Teucrium maximowiczii, Thymus ternejicus, T. urussovii, T. ussuriensis, Trigonella schischkinii, Trillium rhombifolium, Veronica olgensis, Veronicastrum cerasifolium, Vicia subrotunda, Viola chassanica, V. pacifica

Species list
File L_F18.txt with the native plants of Ussuri floristic district is for downloading