Some symbols of friendship include yellow roses, pine trees and pandas. Yellow roses are considered a symbol of friendship (as well as joy) because of their color, which is bright, cheerful and pleasant without the romantic or passionate connotations of other rose colors.
The panda and pine tree are both traditional Chinese symbols of friendship.
Given its evergreen nature, the pine tree, which is revered in traditional Chinese culture, symbolizes friendship in the face of adversity. Meanwhile, as a symbol of lasting friendship, the panda also symbolizes harmony (because of its black and white pelt, which is reminiscent of the yin and yang) and peace (because of its gentle demeanor and, in contrast to other bears, its vegetarian diet).