| General Description | This species occupies an area of only 1,772 square km and has been placed on the IUCN Red List as globally threatened. |
| Habitat | Forests in south-west Sichuan at an altitude of 2,000-2,700 m. |
| Bark/Stem Description | Dark brown or purplish-brown bark with branchlets green or purple when young, maturing to glabrous and brown. |
| Flower/Leaf Bud Description | Ovoid. |
| Leaf Description | Thin, greyish-green in colour, a subcordate or rounded base with 3 shallow lobes, 9-11 x 7-12 cm. |
| Fruit Description | Yellowish brown fruit produced in September. Convex nutlets, yellowish brown in colour with spreading wings, 4 x 1.5 cm. |