Thymus citriodorus, the lemon thyme or citrus thyme, is a lemon-scented evergreen mat-forming perennial plant in the family Lamiaceae.
Lemon thyme is a small, shrub-like herb with tiny leaves growing in clusters along multi-branched stems. Mature stems become woody at the base and the tops are tender and light green.
The leaves are lance-shaped, slightly elliptical, and are extremely small, measuring only 1 millimeter in size.
The herb looks relatively identical to English thyme; where it differs is in its aroma and taste.
Natural compounds in Lemon thyme, like limonene and thymol, give the herb a citrusy flavor.
The lemon flavor can mask some of the bitterness typically present in garden thyme.