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(First upload on March 28 2010. Last on December 28 2020) [ 日本語 | English ]

Brassica L. (アブラナ) Seiyou-abrana (セイヨウアブラナ, 西洋油菜), rapeseed Nanohana (ナノハナ, 菜ノ花) Natane (ナタネ, 菜種) Lifeform: biennial forb Distribution: Native to north Europe and Sibera (exotic to Japan) Habitat: ruderal

Field training on integrated environmental research (統合環境調査法実習) (fauna and flora 種リスト) HUSTEP: Plants and Plant communities in Japan (flora list) Leaf: pale green due to bloom ↔ B. rapa: green Chromosome number: 2n = 38 Use: vegetable Varieties (Cultivars): var. napobrassica (L.) Peterm. (スウェーデンカブ), rutabaga

Brassica napus in Japan

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4 5 6
7 8 9
[1] at a roadside, N24/E1, East Ward, Sapporo, on October 28 2009. [2] at Hibiya Park, Tokyo, on December 27 2014. [3] at a small garden in front of the Usujiri Fisheries Station of Hokkaido University, southern Hokkaido, on May 2 2017. [4] under a street tree near Jr Ikebukuro Station, Tokyo, on March 14 2017. [5/6] near the Suruga Ohashi Bridge (駿河大橋), Shizuoka City, central Japan, on March 6 2013. [7] in Wakakusa Park, N25/W7, North Ward, Sapporo, on November 6 2020. [8/9] at a house side, probably used for a house garden, along a street on N16/W4, North Ward, Sapporo, on July 15 2016. The yellow flowers in Photo #9 is Xanthophthalmum coronarium. Records: on a bank along Sophia Street, Chiyoda Ward, Tokyo, on May 24 2019.