Lavandula angustifolia (also Lavandula spica or Lavandula vera; common lavender, true lavender, or English lavender (though not native to England); formerly L. officinalis) is a flowering plant in the family Lamiaceae, native to the western Mediterranean region, primarily in the Pyrenees and other mountains in northern Spain.
It is a strongly aromatic shrub growing to 1–2 m tall. The leaves are evergreen, 2–6 cm long and 4–6 mm broad. The flowers are pinkish-purple (lavender-coloured), produced on spikes 2–8 cm long at the top of slender, leafless stems 10–30 cm long.
The species name angustifolia is Latin for "narrow leaf".
Lavender essential oil, when diluted with a carrier oil, is commonly used as a relaxant with massage therapy. Products for home use including lotions, eye pillows—including lavender flowers or the essential oil itself—bath oils, etc. are also used to induce relaxation.