Latin name: Rosmarinus Officinalis.Part of the plant used: flowering tops.Source: Tunisia.Extraction method: Steam distillation.Rosemary essential oil is steam distilled from the flowers, stems and leaves of the plant. According to the British Pharmacopoeia, the oil distilled from the flowering tops is superior to that obtained from the stem and leaves, where almost all commercial oils would be distilled. This oil is useful for treating wounds, burns, colds, flu, fatigue, digestive disorders, headaches, asthma, bronchitis, gout, rheumatism, liver and gallbladder problems bile, water retention and poor circulation. For a massage, rosemary oil is often mixed with one or two base oils such as almond, apricot kernel or hazelnut oil. It is good for the hair as it is believed to increase circulation to the scalp and promote hair growth. Never use this oil internally, and avoid it if you are pregnant or have high blood pressure or epilepsy. Rosemary was well known and used in the ancient world. As it was believed to improve memory, it became a symbol of fidelity and was used at weddings, funerals and other religious ceremonies. A sprig of rosemary was beautifully tied with ribbons and given to wedding guests as a symbol of love and fidelity. "Hungarian water", made from fresh rosemary tops soaked in wine for a few days, was made for the Queen of Hungary and is said to have cured her paralysis.