Salvia rosmarinus, commonly known as rosemary, is a woody, perennial herb with fragrant, evergreen, needle-like leaves and white, pink, purple, or blue flowers, native to the Mediterranean region.[3] Until 2017, it was known by the scientific name Rosmarinus officinalis, now a synonym.

It is a member of the mint family Lamiaceae, which includes many other herbs. The name "rosemary" derives from Latin ros marinus ("dew of the sea").[4][5] The plant is also sometimes called anthos, from the ancient Greek word ἄνθος, meaning "flower".[6] Rosemary has a fibrous root system.[3]