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(First upload on November 17 2021. Last on September 13 2022) [ 日本語 | English ]

Hypericum L. (オトギリソウ) Ezo-otogiri (エゾオトギリ, 蝦夷弟切), Yezo St. John's wort* (*: tentative) Lifeform: deciduous perennial forb < 10-30 cm high Distribution: Japan (north to northern Honshu) and Sakhalin Habitat: rocky sites and grasslands in mountains or near seashores Leaf: many translucent dots or pale glands on the surface and dark dots on the margin

Synonyms: Hypericum attenuatum Choisy var. fruticulosa F. Schmidt

Hypericum yezoense in Hokkaido

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[1] in Shiretoko Five Lakes Aera, eastern Hokkaido, on August 29 2020. [2-6] in Experimental Station for Medical Plant Studies, Faculty of Medicine, Hokkaido University. [2/3] on August 30 2022. [4-6] on September 8 2021.