Tree bark ages vertically! Be base of a tree matures first and the top retains juvenile bark. This is very important to remember when identifying trees by bark. Here, we examine this variation on American sycamore (Platanus occidentalis). . #tree #trees #plant #plants #botany #garden #gardening #Forest #forestry #arborist #dendrology #horticulture | Levitreeschool

Here, we discuss an important arboricultural concept, “bark inclusion.” Codominant stems often lead to included bark which is a common sign of structural weakness. Japanese zelkova (Zelkova serrata) is a the poster child of numerous, weak codominant stems! . #tree #trees #plant #plants #botany #garden #gardening #Forest #forestry #arborist #dendrology #horticulture | Levitreeschool