Lavandula dentata is a species of flowering plant in the Lamiaceae family, native to the Mediterranean, the Atlantic islands and the Arabian peninsula. Growing to 60 cm tall, it has gray-green, linear or lance-shaped leaves with toothed edges and a lightly woolly texture. The long-lasting, narrow spikes of purple flowers, topped with pale violet bracts, first appear in late spring. The whole plant is strongly aromatic with the typical lavender fragrance.
Its native habitat includes low hills with limestone substrates amidst other shrubs. It is commonly grown as an ornamental plant and its essential oil is used in perfumes.