| Scientific Name: | Corylus colurna |
| Common Name: | Turkish filbert, Turkish hazel |
| Family Name: | Betulaceae |
| Origin: | Central / west Asia, Europe |
| Hardiness Zone: | Zone 4: (-34 to -29 °C) |
| Plant Type: | Tree - deciduous |
| Mature Size: | 22 - 30m x 10 - 15m (height x width) |
| Habit: | Upright |
| Form: | Pyramidal - widely |
| Texture: | Medium - coarse |
| Landscape Uses: | Shade tree, Street (boulevard tree), Wildlife food |
| Exposure: | Full sun, Part sun/part shade |
| Soil or Media: | Acidic, Humus rich, Well-drained |
| Leaves: | Simple, Alternate, Soft flexible, Pubescent, Obovate, Ovate, Double serrate |
| Flowers: | Catkin (ament), Yellow, Green, Mar |
| Fruit: | Aggregate fruit, Edible, Nut, (Accessory tissue), Green, Brown, Sep-Oct |
| Key ID Features: | |
| Trunk short with dense, horizontal, low branching; leaves alternate, broadly ovate to obovate, most blades 8-13cm x 6-10cm wide, double-toothed; catkins (male) up to 8cm long in March; nuts 1-1.5cm long x 8-10mm wide, spiny and hairy husks extend beyond the 4-6 nuts they enclose. Winter ID: bark grey but may flake off on mature trees to reveal an orange-brown inner bark. | |