Toxicodendron trichocarpum




Family Anacardiaceae
Scientific name Toxicodendron trichocarpum (Miquel) Kuntze
Synonyms Rhus echinocarpa H. Léveillé; Rhus trichocarpa Miquel; Rhus trichocarpa Miquel var. humilis Honda; Rhus trichocarpa Miquel var. serrata Engler; Rhus trichocarpa Miquel var. viridis Makino
Common name (Japanese common name) yama-urushi [mountain lacquer tree]
(English common name) none
Distribution (Japan) Hokkaido, Honshu, Shikoku, Kyushu
(Other nations) Russia (Kuril Islands), Korea, China
Chromosomal number 2n=30
Description Plants 3-8m tall. Leaves 25-60cm long, 6-8 pairs leaflets each 5-12cm long. Flowers yellow green inflorescences 15-25cm long, flowering in May to June. Fruits yellow brown 5-6mm. Deciduous. Subarbor tree.
Reference Toxicodendron trichocarpum (Miquel) Kuntze
Rhus trichocarpa Miq.
Rhus trichocarpa Miquel var. viridis Makino
Chromosome Counts of Flowering Plants of Hokkaido (24)
Container and method for producing same (US Patent 4781321/1988)
Reverse transcriptase inhibitor (US Patent 6132725/2000)
Plant-derived powder and an extract of the same (US Patent 6267993/2001)



Male plant


May 2008
at Shimane Prefecture
Man-yo Botanical Garden
May 2008
at Shimane Prefecture
Man-yo Botanical Garden
May 2008
at Shimane Prefecture
Man-yo Botanical Garden



May 2008
at Shimane Prefecture
Man-yo Botanical Garden
May 2008
at Shimane Prefecture
Man-yo Botanical Garden
May 2008
at Shimane Prefecture
Man-yo Botanical Garden



May 2008
at Shimane Prefecture
Man-yo Botanical Garden