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(First upload on July 14 2009. Last on October 1 2018) [ 日本語 | English ]

Spergularia rubra (L.) C. Presl






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

Spergularia (Pers.) J. Presl et C. Presl (ウシオツメクサ)
Usubenitsumekusa (ウスベニツメクサ, 薄紅爪草), red sandspurrey or roadside sandspurry
Lifeform: weedy, annual forb < 25 cm high
Distribution: native to Europe and Asia (exotic to Japan)
Habitat: roadside, open space, seashore, etc.

Check also S. marina and S. bocconii when the habitat is seashore

Chromosome number: 2n = 18, 27, 36 or 54
索引

Spergularia rubra in Hokkaido


ST1 ST2 ST3
ST4 ST5 ST6
[1/2] at a vacant site, N27/E2, East Ward, Sapporo, on June 2 2012. [3/4] at a roadside at the foot of Abuta Shrine on June 6 2013. [5/6] close to AMEDAS weather station in Horokanai Town, northern Hokkaido, on June 25 2018.

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