Rosmarinus officinalis, also known as rosemary, is an aromatic plant which belongs to the Lamiaceae family and is native to the Mediterranean region. Rosemary essential oil is produced by steam distillation from the flowering tips of the plant yielding a colorless to pale yellow liquid with a strong, warm, woody, balsamic aroma. 

Rosemary is an evergreen, usually erect, bushy shrub up to 2 m tall and wide. Stem indistinctly quadrangular, finely grey pubescent. Leaves opposite, tufted on the branches, sessile to short petiolate; blade linear, 1-5 cm x 1-2 mm, base attenuate, margin entire but revolute, apex obtuse, leathery, dark glossy sea-green and subglabrous above, white-felted tomentose beneath, aromatically fragrant when crushed. Inflorescence racemose, axillary, 5- to 10-flowered, 0.5-2.5 cm long, terminating short lateral branches; pedicel 2-5 mm long; calyx campanulate, 2-lipped, 5-6 mm long, densely stellate tomentose, upper lip small and 3-dentate, lower lip 2-lobed; corolla tubular, 2-lipped,10-13 mm long, pale blue or blue (seldom white), upper lip erect or recurved, 2-lobed, ovate, about 4 mm long, lower lip 3-lobed, about 7 mm long, with large concave middle lobe; 2 anterior stamens perfect, 7-8 mm long, ascending under the base of the upper lip, 2 posterior stamens reduced to hardly visible staminodes; pistil with deeply 4-partite ovary, style incurved, 1.5 cm long ending into 2 short, unequal branches with stigma. Fruit composed of 4 sub-globose to obovoid nutlets, about 2 mm long, glabrous and smooth. 

Rosmarinus officinalis, also known as rosemary, is an aromatic plant which belongs to the Lamiaceae family and is native to the Mediterranean region. Rosemary essential oil is produced by steam distillation from the flowering tips of the plant yielding a colorless to pale yellow liquid with a strong, warm, woody, balsamic aroma. 

Rosemary is an evergreen, usually erect, bushy shrub up to 2 m tall and wide. Stem indistinctly quadrangular, finely grey pubescent. Leaves opposite, tufted on the branches, sessile to short petiolate; blade linear, 1-5 cm x 1-2 mm, base attenuate, margin entire but revolute, apex obtuse, leathery, dark glossy sea-green and subglabrous above, white-felted tomentose beneath, aromatically fragrant when crushed. Inflorescence racemose, axillary, 5- to 10-flowered, 0.5-2.5 cm long, terminating short lateral branches; pedicel 2-5 mm long; calyx campanulate, 2-lipped, 5-6 mm long, densely stellate tomentose, upper lip small and 3-dentate, lower lip 2-lobed; corolla tubular, 2-lipped,10-13 mm long, pale blue or blue (seldom white), upper lip erect or recurved, 2-lobed, ovate, about 4 mm long, lower lip 3-lobed, about 7 mm long, with large concave middle lobe; 2 anterior stamens perfect, 7-8 mm long, ascending under the base of the upper lip, 2 posterior stamens reduced to hardly visible staminodes; pistil with deeply 4-partite ovary, style incurved, 1.5 cm long ending into 2 short, unequal branches with stigma. Fruit composed of 4 sub-globose to obovoid nutlets, about 2 mm long, glabrous and smooth.