Upright deciduous shrubs. Twigs moderate, usually somewhat 4-lined; pith moderate, continuous, roundish, pale. Buds solitary (rarely multiple), sessile, ovoid, with about 4 pairs of scales; end-bud often absent. Leaf-scars opposite, small; bundle-trace 1, compound; stipule-scars lacking.
Fig. 281. Syringa vulgaris.
1. S. vulgaris L. Lilac. Upright shrub or small tree to 7 m. ; branchlets glabrous; leaf-scars crescent- or shield-shaped, raised; bud-scales fleshy. Introduced from Europe, cultivated as an ornamental, sometimes escaping (Fig. 281 ).