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(Upload on May 2 2023) [ 日本語 | English ]

Jeffersonia Barton (タツタソウ) Tatsutasou (タツタソウ, 竜田草), (Asian) twinleaf Itomakigusa (イトマキグサ, 糸巻草) Lifeform: perennial forb, with 20 cm tall Distribution: northeasern China (Manchuria) - Amur- Korea Habitat: forest floor and edge

Flower: blue to purple Use: rhizomes and resins used for medicine (stomachic property, blood stanching and antidiarrheic) Synonyms: Plagiorhegma dubium Maxim., called in Far East and Korea

Jeffersonia dubia transplanted in Hokkaido

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[1-5] in the experimental station of medicinal plant studies, Hokkaido University. [1-3] on April 15 2023. [4/5] on April 25 2023.