(First upload on October 19 2010. Last on October 20 2020) [ 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 thunbergii
Polygonum L. (タデ)Mizosoba (ミゾソバ, 溝蕎麦), Thunberg knotweedUshinohitai (ウシノヒタイ, 牛ノ額) Lifeform: annual forb Distribution: China - Korea - Japan Habitat: wet sites, such as riversides, swamps, and ditches HUSTEP: Plants and Plant communities in Japan (flora list) Chromosome number: 2n = 40 |
Synonyms:
Persicaria thunbergii (Siebold et Zucc.) H. Gross, standard var. stoloniferum (Fr. Schmidt) Makino (オオミゾソバ), a leaf stalk developing a wing and a large stipule var. maackianum (Regel) Maxim. ex Franch. et Sav. (サデクサ) var. oreophilum Makino (ヤマミゾソバ) |
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[1] in the park of Nakatonbetsu Limestone Caves for Communication with Nature (中頓別鍾乳洞自然ふれあい公園), northern Hokkaido, on August 28 2015. [2] in a side ditch near the arboreum of Teshio Experimental Forest, HU, on September 13 2010. [3-5] along a paved road in front of the Toya Lake Experimental Station of Hokkaido University, central Hokkaido, on September 18 2013. [6] along a walkboard in a post-mined peatland near Sarobetsu Visitor Center, northern Hokkaido, on August 27 2015. Records: in the Shibecha Experimental Forest of Kyoto University, eastern Hokkaido, on June 27 2019. In the Tomakomai Experimental Forest of HU on September 12 2019. Along Atsuma Coast (浜厚真), central Hokkaido, on June 16 2020. Along O-sawa Course in Nopporo Forest Park on July 17 2021. On a trail adjacent to Toyonaka Park along Shojin River, Sapporo, on September 18 2021.
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[1/2] at Zenibako coast (銭函海岸) on August 31 2011. [3] in Shibetsu wetland, eastern Hokkaido, on Augsut 28 2020.