Thymus hyemalis

Thymus hyemalis, the winter thyme, is a small aromatic subshrub of the Lamiaceae family endemic to the dry hills of south-eastern Spain, particularly the provinces of Murcia, Almería, and Alicante. It forms a compact, woody-based mound twenty to forty centimetres tall, with slender, prostrate to ascending, four-angled stems clothed in tiny, opposite, narrowly elliptic, grey-green leaves dotted with translucent oil glands. The plant is named for its winter flowering, unusual among thymes: from late autumn through early spring it produces small terminal heads and short spikes of two-lipped pale pink to lilac flowers attractive to early-emerging pollinators. The essential oil composition varies markedly across the seasons, with chemotypes dominated variously by thymol, carvacrol, linalool, or 1,8-cineole.