Cupressus sempervirens 'Glauca' is a cultivar of the Mediterranean cypress (Cupressus sempervirens), which is an evergreen coniferous tree native to the Mediterranean region. This cultivar is prized for its blue-gray foliage, which provides a striking contrast to the green foliage of the species. The tree has a narrow, upright growth habit, making it a popular choice for use as a specimen plant or for use in hedges and screens. 'Glauca' is a fast-growing cultivar that is relatively low-maintenance, making it a popular choice for landscaping purposes.