(Upload on August 7 2018) [ 日本語 | English ]
Mount Usu / Sarobetsu post-mined peatland
From left: Crater basin in 1986 and 2006. Cottongrass / Daylily
HOME > Plant list (植物リスト) > Polygonaceae (タデ科) > Rumex gmelinii
Rumex L. (スイバ)Karfutonodaiou (カラフトノダイオウ, 樺太野大黄), giant dockLifeform: perennial forb < 2 m in height when matured Distribution: Mongolia - northeastern Asia - eastern Siberia - Far East - Korea - Japan (Hokkaido and central Honshu) Red Data Book: vulnerable (VU) Habitat: wetlands, such has moist valleys, stream banks and flood plains |
Leaf: hair on the backside, wider than Rumex longifolius |
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[1-3] in a flooding area on the upstream of Sarobetsu River, northern Hokkaido, on May 12 2018.