Determination of the Syringa vulgaris cultivars with simple flower type on the example of the lilac collection in the Main botanical garden named after N.V. Tsitsin of the Russian Academy of Sciences

Choice of the significant signs and making the key for identification of the Syringa vulgaris cultivars with simple flower type on the example of 90 cultivars of lilac collection of the Main botanical garden named after N.V. Tsitsin of the Russian Academy of Sciences is considered in the article.