Armeria pungens grows in small shrubs, reaching heights of about 80 centimetres (31 in). The stems are lignified at the base, robust, highly branched. Leaves are glabrous, linear to lanceolate, pointed, about 60–150 millimetres (2.4–5.9 in) long and about 1–3.5 millimetres (0.039–0.138 in) wide. Flower heads are pale pink, gathered in globose inflorescences at the top of long pedicels. Flowering period extends from May through July.