Yucca utahensis can reach a height of 10 feet (3 m), though it is usually much smaller. Stems are sometimes procumbent, often several per colony, forming colonies of several individuals. Leaves are narrow and needle-like, up to 70 cm long but rarely more than 2 cm wide, with fibers separating along the margins. Flowers are creamy white, nodding, bell-shaped. Fruit is a dry capsule with black seeds.