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(First upload on May 25 2013. Last on April 1 2022) [ 日本語 | English ]

Arabidopsis Heynh. (シロイヌナズナ) Shiroinunazuna (シロイヌナズナ, 白犬薺), mouseear cress Lifeform: annual/biennial forb, overwintered by rosette Distribution: native to northwestern Africa and Eurasia (exotic to Japan) Habitat: disturbed sites Leaf: covered with small, unicellular hair (trichomes)

Chromosome number: 2n = 10 (n = 5, diploid) the genome (ゲノム) size is minimum in the seed plants + adequate to analyze genes ⇒ model plant for molecular biology Synonyms: Arabis thaliana L., basionym Sisymbrium thalianum (L.) J. Gay Stenophragma thalianum (L.) Celak. Cultivars (and mutants) for experiments, e.g., Columbia (C24) and Sapporo

Arabidopsis thaliana in Hokkaido

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[1] at the backyard of Toko Store in N27/E2, East Ward, Sapporo, on April 28 2015. [2] at N14/W4, North Ward, Sapporo on May 9 2013, probably escaped from a certain university near the location. [3/4] ditto, on October 30 2013. Probably this species can be seen in Field training on integrated environmental research 統合環境調査法実習 (fauna and flora 種リスト). [5] along a paved road at N21/W2, Sapporo, on April 7 2014. [6] a grassland dominated by mouseear cress in a parking lot, N12/W4, North Ward, Sapporo, on May 22 2017. [7] on an artificial grassland in Fujimi Road Station, northern Hokkaido, on May 27 2017. [8] in a small flwoer garden in front of a building on N23/E1, East Ward, Sapporo, on April 13 2018. [9/10] in front of Otsuka ophthalmic clinic, N16/E4, North Ward, Sapporo. [9] on April 23 2018. [10] on March 27 2020. Also on March 11 2020. [11] at a hedge in N28/E1, East Ward, Sapporo, on May 4 2020. [12] in front of Otsuka ophthalmic clinic, N16/E4, North Ward, Sapporo, on March 30 2022. Records: flowering adjacent to Hokkaido Government Office Building in the Central Ward of Sapporo on April 15 2021. short flowering stalks beside a building in N24/E2, East Ward, Sapporo, on September 13 2021. Flowering in front of Otsuka ophthalmic clinic on April 4 2023.