Acer calcaratum
| Family |
| Sapindaceae (Aceraceae) |
| Genus |
| Acer |
| Species |
| calcaratum |
| Category |
| Woody |
| Type |
| Tree (deciduous) |
| Height |
| 7 m |
| General Description |
| This small tree has been placed on the IUCN Red List as globally threatened. |
| Habitat |
| Streams in subtropical forests at an altitude of 1,200-2,400 m. |
| Bark/Stem Description |
| Smooth, greenish-brown at maturity and green and glabrous in its youth. |
| Flower/Leaf Bud Description |
| Ovoid, reddish-brown winter buds. |
| Leaf Description |
| Light green towards the lower portion of the leaf, graduating to an olive green colour, 3 triangular-ovate lobes, a rounded base, 6-15 x 5-21 cm. Leaves turn yellow, orange, or red in autumn. |
| Flower Description |
| White, 5 petaled flowers with purplish-red sepals. |
| Fruit Description |
| Glabrous samaras and ovoid brown nutlets, 5 x 7 mm, produced March through July. |