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(First upload on November 3 2013. Last on January 10 2018) [ 日本語 | English ]

Rumex crispus L.






Mount Usu / Sarobetsu post-mined peatland
From left: Crater basin in 1986 and 2006. Cottongrass / Daylily

Rumex L. (スイバ)
Nagabagishigishi (ナガバギシギシ, 長葉羊蹄), curly dock, or yellow dock
Chizimisuiba (チヂミスイバ)
Lifeform: perennial forb (dioecism) ≈ 1.5 m in height
Distribution: native to Europe and Western Asia (exotic to Japan and now widespread)

Japan: introduced in Meiji Era (firstly reported from Tokyo in 1891)
Hokkaido Blue List: category A3 → weed (雑草)

Habitat: disturbed sites, such as roadsides, sunny arable lands and sunny grasslands
Leaf margin: waved or curled well
Chromosome number: 2n = 60 (♀)
Synonyms (discarded):

Rumex crispus L. ssp. fauriei (Rech. f.) Mosyakin et W. L. Wagner

Hybrids:
between R. crispus and R. japonicaus ⇒ confusing in the fields
索引

Rumex crispus in Asia


Japan

Sorrel1 Sorrel2 Sorrel3
Sorrel4 Sorrel5 Sorrel6
[1-3] along Toshibetsu River (利別川) near the Ashoro Experimental Forest of Kyushu University, eastern Hokkaido, on June 25 2013. [4/5] in Oi Pier Seaside Park, Tokyo, on December 26 2015. [6] along a seacoast on the bottom of cliff near the Muroran Marine Experimental Station of Hokkaido University on September 11 2017.

Northeast China

Sorrel1 Sorrel2 Sorrel3
[1-3] in the campus of Northeast Normal University in Changchun, northeastern China, on June 5 2017.

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