Low outcrop of rock formed by the erosion of a coastal stack. Unlike a stack, which is exposed at all times, a stump is exposed only at low tide. Eventually it is worn away completely.
White stands for Islam, peace, optimism, light, and love. Red recalls the martyrs of Sudan and the people's struggle. Black stands for Sudan and the Mahdiya revolution of the 1880s. Effective date: 20 May 1970.