Syringa reticulata subsp. pekinensis Syringa reticulata subsp. pekinensis Syringa reticulata subsp. pekinensis (formerly known as "Syringa pekinensis"), also known as the Pekin lilac or the Chinese tree lilac, grows in an open, multi-stemmed form to a height of , with a spread of . They are native to northern China but grow in USDA hardiness zones 3 through 7. It is grown as an ornamental tree in Europe and North America. Pekin lilacs have arching branches and ovate dark green leaves that are long. They have yellowish-white flowers that bloom in panicles up to long. The panicles change over to loose clusters of brown
Gracillaria albicapitata Gracillaria albicapitata Gracillaria albicapitata is a moth of the Gracillariidae family. It is known from the islands of Hokkaidō and Honshū in Japan and the Russian Far East. The wingspan is 9.8-12.5 mm. The larvae feed on "Fraxinus lanuginosa", "Fraxinus mandshurica", "Syringa amurensis", "Syringa reticulata" and "Syringa vulgaris". They mine the leaves of their host plant. Young larvae mine directly into the middle layer of the parenchymal tissue of the leaf or leaflet. The mine made by the larvae of the first three instars is irregularly large blotchy or wide linear, and inter-parenchymal, with a few weak wrinkles on both