(First upload on June 24 2008. Last on November 2 2022) [ 日本語 | English ]

Primula japonica A. Gray

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

Primula L. (サクラソウ)
Kurinsou (クリンソウ, 九輪草), Japanese primrose
Shichijuusou (シチジュウソウ, 七重草)
Lifeform: perennial forb (the largest primrose in Japan)
Distribution: endemic to Japan (Hokkaido - Honshu - Shikoku)
Habitat: moist sites, such as stream sides

Field training on integrated environmental research (統合環境調査法実習) (fauna and flora 種リスト)

Chromosome number: 2n = 44 (4X)
Utlization: gardening
f. albiflora Hort. (シロバナクリンソウ)

Primula japonica in Hokkaido

P1 P2 P3 P4
P5 P6
[1/2] at Horonai River in Tomakomai Experimental Forest (ToEF), Hokkaido University, on June 11 2008. [3/4] in front of the facility of Uryu Experimental Forest, northern Hokkaido, on June 29 2018. Records: at Horonai River in ToEF on June 25 2012