Lilium mackliniae, the Shirui lily or Siroi lily, is a rare Indian species of plant found only in the upper reaches of the Siroi hill ranges in the Ukhrul district of Manipur, India, at an elevation of 1,730–2,590 metres (5,680–8,500 ft) above sea level. It is located near the boundary of Myanmar to the east, Shiroi village in the west, Choithar village in the south and Sihai village in the north. It is the state flower of Manipur, but unfortunately it has become an endangered species in India. A postal stamp was issued by the Indian Postal Department to commemorate this flower.