(First upload on November 4 2011. Last on July 15 2014) [ 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) > Polygonum perfoliatum
Polygonum L. (タデ)Ishimikawa (イシミカワ, 石見川/石実皮/石膠), mile-a-minute weedLifeform: annual forb (trailer) Distribution: east Asia, including Japan Habitat: sunny and wet sites |
Field training on integrated environmental research (統合環境調査法実習) (出現種リスト) Synonyms
Persicaria perfoliata (L.) H. Gross |
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[3] close-up of a stem. [4] close-up of (immature) fruits. [1-3] at Zenibako Coast (銭函海岸), Otaru City, on August 31 2011. [4/5] at a backyard of a facility of Kyushu University Experimental Forest in Ashoro Town, eastern Hokkaido, on June 6 2014.