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
Prunus padus and spring display of fragrant, white flowers. The common name Mayday tree is not related to the distress signal mayday as the name for the tree was in use prior to the adoption of mayday as an international distress signal. A taboo on the use of the wood was reported by natives of Advie, in northeast Scotland, being regarded as a "witches tree". Prunus padus Prunus padus, known as bird cherry, hackberry, hagberry, or Mayday tree, is a flowering plant in the rose family Rosaceae. It is a species of cherry, a deciduous small tree or large shrub up to