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Syringa (Lilac) is a genus of about 20–25 species of flowering woody plants in the olive family (Oleaceae).
The usual flower colour is a shade of purple (often a light purple or lilac), but white, pale yellow and pink, and even a dark burgundy color are also found. The flowers grow in large panicles, and in several species have a strong fragrance.
Source: http://en.wikipedia.org/wiki/Syringa (5 years and 683 days ago)