top

Shiro TSUYUZAKI
Plant community ecology / Environmental conservation

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

(Update on August 1 2010)

Lizard tail
Houttuynia cordata Thunb. [Saururaceae]

Dokudami (ドクダミ, 毒溜)

Life form: deciduous perennial forb
Distribution: east Asia, incluidng Japan
Habitat: semi-mesic sites
Medical herb


Saururaceae

Nomenclature follows Ohwi and Kitagawa (1983)

Two genera in Japan: Saururus L., and Houttuynia Thunb.

Saururaceae in Japan

Saururus L.

S. chinensis (Lour.) Ball. (ハンゲショウ): not in Hokkaido

Houttuynia Thunb.

H. cordata Thunb. (ドクダミ)


Houttuynia cordata in Hokkaido

One species in Houttuynia is distributed in Japan.

ST ST ST
[Left] this species is clonal. [Center] a shoot. [Right] close-up of flowers. At Toya Lake Experimental Station, Hokkaido Univ., on July 22 2010.


References

TOP