Common traits seen in humans and trees
Age is seen through the emergence of lines on the face, in the case of humans, and on the trunk, in the case of trees.
There are immovable and movable joints, both, in humans and in trees. Joints of the human skull, and nodes of a bamboo are immovable joints, while the joints in the limbs of humans, and in the junction between the stem and the leaf of a plant are movable joints.
Humans and trees, both, depend on many living creatures, and vice versa. Thus, both are part of a complicated structure of relationships.
Humans and trees possess a common dependence, for survival, on sunlight and water.