Very upright growth habit with male specimens and little more round at the top with females. Fan shaped leaves of a soft green colour during summer time, turning a nice golden yellow in fall time. On females specimens only the fruits are in shape of small yellow prunes. It has good resistance to pollution. Use alone or as an alignment tree.
Smaller leaves than species and a textured trunk, the round bumps on the trunk remind you of female breasts or 'Chi Chi' where the name comes from. They form as the tree matures usually at around 10 years of age. The bumps are really dormant buds. This selection is very rare and makes a fantastic choice for the landscape and is highly prized in the bonsai community.
Globular shape tree with a wide, flat top well spaced out. Its dark green foliage in summer turns yellow in fall a little late. It is a fruitless tree and grows faster than the species. It seems to have a good resistance to de-icing salt.
Upright growth habit and irregular in shape, almost pyramidal. Its dark green foliage turns yellow in fall. It gives only a small amount of flowers and fruits (of no concern). This fast growing tree resists to de-icing salt. Use as a specimen.
Medium sized tree, with a flat, round, irregular head. New shoots are golden yellow and during summer they turn greenish creating a nice contrast all season long. It is a fruitless tree. Use as a specimen.
Round, rather slender growth habit. Young leaves are pink tinged, then becoming vivid green later on, they will turn yellow in fall. Flowers are greenish white, around May-June. Fruits are reddish brown leathery pods. Avoid planting in very windy areas. This tree tolerates urban conditions and pollution. Use as a specimen.