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(First upload on July 28 2010. Last on January 6 2015) [ 日本語 | English ]

Erysimum L. (エゾスズシロ) Ezosuzushiro (エゾスズシロ, 蝦夷清白), wormseed wallflower Life form: annual/biennila forb Distribution: widespead in the Northern Hemisphere (extotic to Japan *) *: probably native to northern and western Hokkaido (Umezawa 2007) Habitat: wet to moist; disturbed sites Field training on integrated environmental research (統合環境調査法実習) (fauna and flora 種リスト) Synonyms:

Erysimum cheiranthoides L. var. japonicum H. Boissieu Erysimum japonicum (H. Boissieu) Makino Erysimum macilentum Bunge Varieties (Hultén 1968) ssp. cheiranthoides: annual, lacking thick root; stem simple or branched in middle part, with about 5 basal internodes and 5-10 nodes (introduced weed to AK from Europe) ssp. altum Ahti: biennial, with thick root; stem not branchedd in middle part, with 8-20 basal internodes and 20-40 nodes (native to AK)

Erysimum cheiranthoides in the Northern Hemishpere

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Hokkaido

1 2 3 4

5 6 7
ssp. cheiranthoides: [1/2] at a riverside on Satsunai River, eastern Hokkaido, on June 26 2013. [3] in front of the main door of GSEES on August 21 2010. [4] in front of the main door of GSEES on July 5 2011. [5/6] at a roadside, N14/W4, North Ward, Sapporo, on September 9 2013. [7] in front of Saburen House, Toyotomi Town, northern Hokkaido, on July 23 2014. Records: at a park in East Ward, Sapporo, on July 3 2010. Flowering at a small flower garden in front of a building in N13/E2, East Ward, Sapporo, on June 5 2021.

North America

8 9 10
[8/9] ssp. altum along a paved road at Nome in Seward Peninsula, Alaska, on August 6 2013. [10] along a paved road near a harbor in Saint John, New Brunswick, eastern Canada, on September 19 2014.