Syringa Syringa Syringa (lilac) is a genus of 12 currently recognized species of flowering woody plants in the olive family (Oleaceae), native to woodland and scrub from southeastern Europe to eastern Asia, and widely and commonly cultivated in temperate areas elsewhere. The genus is most closely related to "Ligustrum" (privet), classified with it in Oleaceae tribus Oleeae subtribus Ligustrinae. Lilacs are used as food plants by the larvae of some Lepidoptera species including copper underwing, scalloped oak and Svensson's copper underwing. They are small trees, ranging in size from tall, with stems up to diameter. The leaves are opposite (occasionally in
Plant identification standard size of 16 × 11 inches or 41.25 × 28.75 cm. The identified plant ideally includes all parts including roots, flowers and fruits, strobili, etc. One of the largest herbaria in the world is kept at the Royal Botanic Gardens, Kew England and has collected an estimated 7 Million specimens. Plant identification Plant identification is the process of matching a specimen plant to a known taxon. It uses various methods, most commonly dichotomous keys or multi-access keys. Plant identification has evolved over hundreds of years and depends to a large extent on what criteria and whose system is used.