The prices of tulip bulbs reaching excessively high levels, known as the Tulip mania. Common wildflowers include&colon; camomile, daisy, gladiolus, hyacinth, iris, poppy, cyclamen and tulip, among others. Characteristic wild flowers include varieties of mariposa, tulip, and tiger and leopard lilies. Often Dutch heritage festivals coincide with the blooming of the tulip. The control tower is in the shape of the Turkish national flower, the tulip. She has a floral headdress over her long hair, including a multicoloured "broken" tulip. The colour of tulip flowers also vary with growing conditions. This coloration closely mimics that of the winter leaf of the tulip poplar. Champagne is also served in a tulip glass. Colourful floats decorated with tulip heads competed for a cup. For example, aporphine alkaloid liriodenine produced by the tulip tree protects it from parasitic mushrooms. Inside, Walter finds a drawing of a white tulip. Added to this was the Dutch mania for horticulture, particularly the tulip. He provided another explanation for Dutch tulip mania. This is achieved by the position of the transverse rails with tulip shaped weld seams.