Comfrey
Symphytum officinale L. [Boraginaceae]
Hireharisou (ヒレハリソウ, 鰭玻璃草)
Lifeform: deciduous perennial forb
Distribution: exotic to Japan
Symphytum L.
No native species in Japan
S. asperum Lepechin (オオハリソウ)
S. officinale L. (ヒレハリソウ)
Symphytum officinale in Hokkaido
Common in the city of Sapporo, e.g., along roads, parks, and sunny understories. You may see this species in a field trip of my lecture, HUSTEP.
In an understory on the campus of Hokkaido University, Sapporo, on June 14 2007.