top

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 September 2 2007. Last on October 16 2009)

Climbing Sumac
Rhus ambigua Lavall. ex Dipp. [Anacardiaceae]

Tsutaurushi (ツタウルシ, 蔦漆)

Lifeform: deciduous vine
Habitat: woodland, forest edge, gap
Inflammation of the skin by urushiol
U
Urushiol: R =

(CH2)14CH3, (CH2)7CH=CH(CH2)5CH3, (CH2)7CH=CHCH2CH=CH(CH2)2CH3, (CH2)7CH=CHCH2CH=CHCH=CHCH3, (CH2)7CH=CHCH2CH=CHCH2CH=CH2, and others

Synonyms

R. orientalis (Greene.) C. Schneid.
R. toxicodendron hispida Engl.
Toxicodendron orientale Greene.

Forma

- f. rishiriensis (Nakai) Hara (リシリツタ): erect < 2 m in height, non-vine


Rhus ambigua in Hokkaido

Rhus Rhus Rhus
[Center] Close-up of inflorescence. [Right] Ivy-covered tree. The ivy is Rhus ambigua. At the entrance gate of Shinsen Bog, central Hokkaido, on June 24 2007.

Rhus Rhus
[Right] close-up of leaves. The leaf shape is highly variable. At the formerly Senjaku Course in Teine Skislope on October 5 2009.


References

TOP