Anchoring roots part of the main root system, vital to a tree´s integrity
annual rings the annual increments of wood in a tree as seen in transverse
cut sections of a stem
(as they are actually three-dimensional, they are really more
cylinders or cones, rather than rings)
arboriculture formerly, the culture of trees
assessment in relation to tree hazards, the process of estimating the risk
which a tree or a group of trees poses to persons or property
Bark a term, usually only applied to the woody part of the bark,
outside the vascular cambium
barrier zone a layer within an annual increment of wood, forming a strong
barrier to the growth of harmful micro-organisms following an
insury
bole (trunk) the main stem of a tree below its first major branch
branch bark-ridge the raised arc of bark tissues that forms within the acute
angle between a branch and its parent stem