Genus: 1 or 2 species.
Region: southern Europe, Sicily; southwestern Asia, Lebanon, Syria, Turkey; eastern Asia, China.
BotanyDeciduous shrub; 8 m tall.
Leaves: opposite; lanceolate to narrow ovate; 12 cm long and 3 cm broad; with acute apex, entire margin, sometimes finely serrated.
Flowers: white, in panicles to 6 cm long; corolla deeply lobed, 4 petals.
Fruit: flat samara, surrounded by a wing.