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(First upload on August 26 2009. Last on July 23 2015) [ 日本語 | English ]

Rorippa sylvestris (L.) Besser






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

Rorippa L. (イヌガラシ)
Kireha-inugarashi (キレハイヌガラシ, 切葉犬辛子/芥子), creeping yellowcress
Yachiinugarashi (ヤチイヌガラシ, 谷地犬辛子)
Life form: creeping perennial forb < 60 cm high
Origin: native throughout Europe (extotic to Japan immigrated probably after 1950s, common in Hokkaido)
Habitat: baregrounds, roadsides, etc., as a weed

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: pinnatifid / Flower: yellow
Chromosome number: 2n = 48 (Howard 1946)
  • Howard HW. 1946. Chromosome number of Rorippa (Nasturtium) sylvestris Nature 158: 666
Synonyms
Radicula sylvestris (L.) Druce
Nasturtium sylvestre (L.)R. Br.

Rorippa sylvestris in Hokkaido


索引

ST1 ST2 ST3 ST4
[1] on July 31 2009. [2] on July 2010. [1/2] on an waste site that was a planned construction site at East Ward (N24/E1) in the city of Sapporo. [3] at a park in N11/W2, North Ward, Sapporo, on July 7 2015. [4] flowers at a roadside, N16/W4, North Ward, Sapporo, on June 21 2013.

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