Tickseed is a common name for the flowering plants belonging to the genus Coreopsis. These plants are widely used for ornamental purposes because of their bright yellow and golden blooms that add a pop of color to gardens. Some alternative synonyms for tickseed include Threadleaf Coreopsis, Sunray, and Golden Coreopsis. Other names for this plant include Calliopsis, which is derived from the Greek word kallos, meaning beautiful, and Opus, meaning flower. There are also several varieties of Coreopsis that are known by specific names such as Moonbeam, Early Sunrise, and Zagreb. Regardless of their name, tickseed plants are a great addition to any garden thanks to their hardiness, low maintenance, and bright blooms.