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Shiro TSUYUZAKI
Plant community ecology / Environmental conservation

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

(First update on August 4 2010. Last on February 2 2012)

Asian lopseed
Phryma leptostachya L. subsp. asiatica (H. Hara) Kitamura [Phrymaceae]

Cronquist: Verbenaceae

Haedokusou (ハエドクソウ, 蝿毒草)

Life form: perennial forb
Distribution: east Asia, including Japan
Habitat: forest floor
Seed dispersal: animal
Poison: phrymarolin (the Japanese name means Toxin Grass to Fly)


Phryma L. in Japan

Phrymaceae (Engler: one species in this family)

Phryma L.

P. leptostachya

subsp. asiatica (H. Hara) Kitamura (ハエドクソウ)

f. oblongifolia (Koidz.) Ohwi (ナガバハエドクソウ)

subsp. leptostachya (アメリカハエドクソウ)


Phryma leptostachya in Hokkaido

ST ST ST
[Left/Center] On the foot of Mount Yosomi, which erupted in 1910, on July 23 2010. Yosomi is a part of the Usu Craters. [Right] at the Philosophy Road in the Hokkaidod University Campus on August 15 2011.


References

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