Glossary term
What is Codominant stems?
Short answer
Codominant stems are two or more trunks of about equal size that grow from the same spot and compete to be the main leader.
Codominant stems, explained for tree service owners
Codominant stems are two or more main stems of similar size that start from the same point on a tree, instead of one clear main trunk. They often grow upward close together and compete for the same space and light. Many have included bark where they meet, which makes the union weaker. For a tree service owner, codominant stems are a common reason for a call, especially after a storm splits one side away. Early pruning can favor one stem and reduce the risk. On an older tree, an arborist may suggest cabling or removal, so it helps to take photos at the union and show the homeowner exactly where the weak spot is.
Related terms
- Arborist
Arborist is a trained tree care professional who plans and performs work on trees, including pruning, removal, tree health care and…
- Included bark
Included bark is bark that gets trapped between two stems or branches growing close together, forming a weak joint.
- Central leader
A central leader is the single main upright stem that runs up the middle of a tree.
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