| Scientific Name: | Acer macrophyllum |
| Common Name: | bigleaf maple |
| Family Name: | Sapindaceae |
| Origin: | B.C. west of Cascades, U.S. - northwest |
| Hardiness Zone: | Zone 6: (-23 to -18 °C) |
| Plant Type: | Tree - deciduous |
| Mature Size: | 22 - 30m x 15 - 25m (height x width) |
| Habit: | Open |
| Form: | Oval - horizontal, Round |
| Texture: | Very coarse |
| Landscape Uses: | Shade tree |
| Exposure: | Full sun |
| Soil or Media: | Acidic, Humus rich, Well-drained |
| Leaves: | Simple, Lobed, Opposite, Soft flexible, Palmate venation, Glabrous, Orbicular, Reniform, Dentate |
| Flowers: | Raceme, Yellow, Apr-May |
| Fruit: | Samara, Schizocarp, Brown, Sep-Oct |
| Key ID Features: | |
| Habit is low branching; leaves opposite, largest of all maples, most blades reniform-suborbicular, most 12-25cm long x 15-30cm wide, mid-green, palmate with 5 lobes (3 major lobes), petioles with milky sap, 15-25cm long; racemes pendulous, 6-12cm long with many yellow florets about 1cm wide; samaras V- or tripod-shaped, thick edge of wings at 40-50 degree angle, about 4-6cm long, pubescent. Winter ID: buds 6-9mm long, green, opposite; large, scale margin with short hairs, bark often covered with moss. | |