Syringa reticulata North America. Syringa reticulata Syringa reticulata (Japanese tree lilac; ; ) is a species of Lilac, native to eastern Asia: in northern Japan (mainly Hokkaidō), northern China (Gansu, Hebei, Heilongjiang, Henan, Jilin, Liaoning, Nei Mongol, Ningxia, Shaanxi, Shanxi, Sichuan), Korea, and far southeastern Russia (Primorye). "Syringa reticulata" is a deciduous small tree growing to a height of 39' (12 m), rarely to 49' (15 m), with a trunk up to 11.8" (30 cm), rarely 15.7" (40 cm) diameter; it is the largest species of lilac, and the only one that regularly makes a small tree rather than a shrub. The
Yerevan Botanical Garden that almost every plant species native to Armenia was represented in an area of approximately 16 hectares. At the same time, large rose and lily gardens were also created. In addition, there were more regions represented: the Caucasus, North America, Europe, Siberia and East Asia. The majority of the species in the collection belong to the plant families Cupressaceae, Pinaceae, Fabaceae, Caprifoliaceae, Oleaceae and Rosaceae, and the genera Juniperus, Quercus, Syringa and Clematis are particularly well represented. Plants grown in the park which are typical of the Caucasus include Quercus castaneifolia, Hedera helix, Corylus colurna, Juniperus sabina, Parrotia persica, and