Tree identification – As uncovered by Carl Linnaeus, through observation and the scientifice methodology, you need to go through a logical identification process of characteristics as follows: Bark, leaf arrangements, leaf shape, leaf margin and texture, Flower, Seed and Fruit, Habit – If you are doing a dissertation and you are not sure of the scientific methodology study trees and Linnaeus and all will become clear
Tree Damage – Risk of Damage by different tree species – the table indicates (click here) that the extent and depth of drying around oak trees can be significantly greater than occurs with most other species.
If damage occurs an expert should advise, with reference to BRE 298, action required
| Tree Identification | |||||||
| DivisionClassOrderFamilySpecies | Bark | LeafArrangement | Leaf Shape | Leaf margin & Texture | Flower | Seeds & Fruit | Habit |
| Pinophyta | |||||||
| Monkey Puzzle | Light Grey Wrinkled | Spiral | Triangular | – | Spherical Cones | 30 x 15Evergreen | |
| Common Yew | Rich Brown flaking to reveal pink patches | Rowed | Needle | – | Small cones – pale yellow | 15-20 x 20Evergreen | |
| Leyland Cypress | Smooth Red Brown develops shallow fissures | Irregularly arranged | Scale like, flattened slightly drooping sprays | – | Angular, globular | 15-36 x 10Evergreen | |
| Juniper(Gin and Tonic Tree) | Dark red Brown – peeling in vertical papery strips | Dense whorls of three | Needles | Berry like blue-black cones | 5 x 4Evergreen | ||
| Cedar | Reddish brown, peels vertically | Upright sprays |
| Tree distance and damage | |||
| Species | Max Tree Height | Max Distance 75% of Cases | Max Distance 90% of cases |
| Oak | 16-23 | 13 | 18 |
| Poplar | 24 | 15 | 20 |
| Ash | 23 | 10 | 13 |
| Elm | 20-25 | 12 | 19 |
| False Acacia | 18-20 | 8.5 | 10.5 |
| Horse Chestnut | 16-25 | 10 | 15 |
| Hawthorn | 10 | 7 | 8.7 |
| Lime | 16-24 | 8 | 11 |
| Willow | 15 | 11 | 18 |
| Beech | 20 | 9 | 11 |
| Plane | 25-30 | .5 | 10 |
| Apple | 8-12 | 6 | 8 |
| Sycamore, Maples | 17-24 | 9 | 12 |
| Cherries, plums, Damsons etc | 6-12 | 6 | 7.5 |
| Birch | 12-14 | 7 | 8 |
| Cypresses, | 18-25 | 3 | 5.5 |
| Rowan | 8-12 | 7 | 8.5 |