Turk's cap

Turk's cap is a common name for several plants and may refer to:
 * Lilium martagon, a lily species native to a wide area from central Europe east to Mongolia and Korea
 * Lilium michauxii, a lily species native to southeastern North America
 * Lilium superbum, a lily species native to eastern and central regions of North America
 * Melocactus, a genus of cactus native to North and South America, many species of which are called Turk's-cap cactus
 * Malvaviscus, a genus of mallows native to North and South America, especially Malvaviscus arboreus and Malvaviscus penduliflorus, called Turk's cap or Turk's-cap mallow