Tulipa gesneriana, the Didier's tulip or garden tulip, is a species of plant in the lily family, cultivated as an ornamental in many countries because of its large, showy flowers. It is the national flower of Afghanistan. This tall, late-blooming species has a single blooming flower and linear or broadly lanceolate leaves. This is a complex hybridized neo-species, and can also be called Tulipa × gesneriana. Most of the cultivars of tulip are derived from Tulipa gesneriana. It has become naturalised ...