Perennial plant measuring between 20 and 50 cm in height, with a large number of branches growing from the stem. Spear-shaped, sessile leaves, laid out in opposing pairs, and Violet flowers that form spikes. Has a strong aroma and a slightly bitter, but pleasant taste. Used as seasoning and in the perfume and liquor industries. In household remedies it is used in antispasmodic preparations and to treat asthma and catarrh. CULTIVATION: light, limy soils, facing south.