| Family | POLYGONACEAE |
| Genus species | Polygonum ajanense (Regel & Tiling) Grig. |
| Bibliography | Fl. URSS [V.L.Komarov, ed.] 5: 666 (1936) |
| Native Range | Siberia to Russian Far East and Korea, n. Japan |
| Primary Biome | Temperate |
| Habitat | grassland |
| Description | glabrous or pubescent, stems flexuous, leaves lanceolate, 3-6cm, obtuse or acute, sessile, sheaths scarious, inflorescence dense, paniculate, pendent, flowers 3-4mm |
| Size | 10-30cm |
| Color | pale green |
| Bloom | summer |
| Ca | |
| Type | perennial |
| Cultivation | mesic, slightly humous, sunny site alpine house, moist, rich, drained soil, sun |
| Propagation | seed in spring, germ. 1-3 months, 13-18°C division in spring; cuttings in late spring and late summer |
| Synonyms | Aconogonon ajanense (Regel & Tiling) H.Hara Aconogonon ajanense var. divaricatum (F.Schmidt) Tzvelev Pleuropteropyrum ajanense (Regel & Tiling) Nakai Pleuropteropyrum ajanense var. divaricatum (F.Schmidt) Miyabe Polygonum ajanense var. glabrum Popov Polygonum ajanense var. hirsutum Popov Polygonum polymorphum var. ajanense Regel & Tiling Polygonum polymorphum var. divaricatum F.Schmidt Polygonum polymorphum f. glaberrimum Takeda Polygonum polymorphum f. glabrescens Takeda Polygonum polymorphum f. pilosum Takeda Polygonum polymorphum f. pubescens Takeda |
| Territory | 3 Asia-Temperate 30 Siberia (BRY Buryatiya, CTA Chita, IRK Irkutsk, YAK Yakutskiya) 31 Russian Far East (AMU Amur, KHA Khabarovsk, KUR Kuril Is., MAG Magadan, PRM Primorye, SAK Sakhalin) 36 China (CHI Inner Mongolia, CHM Manchuria) 38 Eastern Asia (JAP Japan, KOR Korea) |