About Syringa reticulata (Blume) H.Hara
Syringa reticulata (Blume) H.Hara is a deciduous small tree, and the largest known lilac species. It is also the only lilac that regularly grows as a small tree rather than a shrub. It typically reaches 12 m (39 ft) in height, rarely growing as tall as 15 m (49 ft). Its trunk usually grows up to 30 cm (12 in) in diameter, and rarely reaches 40 cm (16 in) in diameter.
Its leaves are elliptic-acute, with entire margins. They measure 2.5–15 cm (0.98–5.91 in) long and 1–8 cm (0.39–3.15 in) broad, with a roughish texture and slightly impressed veins.
Its flowers are white or creamy-white, with a strong fragrance. The flower corolla has a tubular base 4–6 mm (0.16–0.24 inches) long, and a four-lobed apex 3–6 mm (0.12–0.24 inches) across. The flowers grow in broad panicles that measure 5–30 cm (2.0–11.8 in) long and 3–20 cm (1.2–7.9 in) broad, and are produced in early summer.
Its fruit is a dry, smooth, brown capsule 15–25 mm long, which splits in two to release two winged seeds.
This species occurs in northern Japan (mainly Hokkaidō), northern China (including Gansu, Hebei, Heilongjiang, Henan, Jilin, Liaoning, Nei Mongol, Ningxia, Shaanxi, Shanxi, and Sichuan), Korea, and far southeastern Russia (Primorye).
