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| May 2007 at lowland forest edge |
May 2007 at lowland forest edge |
May 2007 at lowland forest edge |
| Family | Polygonaceae |
| Subfamily | Polygonoideae |
| Scientific name | Rumex obtusifolius L. |
| Synonyms | Acetosa obtusifolia (Linnaeus) Gómez de la Maza; Lapathum obtusifolium (L.)Moench; Lapathum sylvestre Lamarck; Rumex crispatulus Michaux; Rumex friesii Grenier et Godron; Rumex obtusifolius subsp. agrestis (Fries) Danser; Rumex obtusifolius var. agrestis Fries; Rumex rugelii Meisner; Rumex sylvestris Campdera |
| Common name | (Japanese common name) ezo-no-gishigishi (エゾノギシギシ, 蝦夷羊蹄 [meaming: Ezo gishigishi (Ezo = an old name of Hokkaido; gishigishi = Rumex japonicus)]) |
| (English common name) bitter dock, broad-leaved dock | |
| Distribution | (Japan) Hokkaido, Honshu, Shikoku, Kyushu |
| (Other nations) [native] Europe | |
| Habitat | Field, roadside, forest edge |
| Chromosomal number | (female) 2n=40 |
| Description | Plants electing 50-130cm tall. Leaves 15-30cm long. Flowers perianths ca. 3mm long, flowering in May to September. Perennial plants. |
| Reference | Rumex obtusifolius L. |
| Rumex obtusifolius L. | |
| Rumex obtusifolius Linnaeus | |
| Note | Naturalized plants. |
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| May 2007 at lowland forest edge |
May 2007 at lowland forest edge |
May 2007 at lowland forest edge |
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| May 2007 at lowland forest edge |
May 2007 at lowland forest edge |
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| May 2007 at lowland forest edge |
May 2007 at lowland forest edge |
