Dendritus is the goddess of trees. She can control the trees swaying in the spring breeze, as the other spring and nature goddesses, nymphs and naiads work together with her to make Spring be Spring.
Dendritus' personality would often be described as drifty and flowing as the trees in the light breeze. In other words, she is very slow and spiritual and she talks to trees, something like Epona talking to only her horses. She enjoys dancing around with some of her nature gods and goddesses, and they like forming a ring with holding hands and dancing around in the middle of nature's trees.
She has some friends as well, though she likes Willow trees, and nature in general, better.