| 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) |
| 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 |