Spanish Marjoram essential oil is not to be confused with Sweet Marjoram. It is steam distilled from the blossoms and plant of a strongly aromatic perennial plant native to Spain. Spanish Marjoram has a warm, penetrating, slightly eucalyptus-type odor. It is often used for respiratory ailments such as bronchitis because of its expectorant qualities. It is considered more effective than Sweet Marjoram for this purpose. It is also antiseptic, antispasmodic and analgesic.