Les Lamiaceae ou Labiatae (Lamiacées, Labiacées ou Labiées) sont une importante famille de plantes dicotylédones qui comprend environ 6 000 espèces et près de 210 genres.
La famille des Dicrastylidiaceae (encore appelée Chloanthaceae) y est incorporée par la classification phylogénétique. Ce sont 11 genres d'arbustes des régions tropicales d'Afrique de l'Est, de Madagascar, des Mascareignes, d'Australie et des Îles du Pacifique.
Certains genres provenant de la famille des Verbenaceae y sont maintenant incorporés.
Caryopteris (bluebeard; Chinese: 莸属 you shu) is a genus of 16 species of flowering plants in the family Lamiaceae (formerly often placed in the family Verbenaceae), native to eastern and southern Asia.
They are herbaceous plants or small shrubs growing to 1–4 m tall. The leaves are opposite, simple ovate to lanceolate, with an entire or crenate margin; they are often aromatic. The blue or white flowers are pollinated by butterflies and bumblebees. The fruit is a four-valved capsule containing four seeds.
Though several Caryopteris species are grown in botanical gardens, as ornamental plants the species have largely been superseded in gardens by the hybrid Caryopteris × clandonensis (C. incana × C. mongholica). The accidental cross that produced it occurred in the garden of Arthur Simmonds at Clandon, near Guildford, Surrey. In 1930, wishing to propagate C. mongholica, he gathered seeds from a plant that was growing near C. mastacanthus. When the seedlings eventually flowered in their second year, hybrids appeared. The final selection, however, was made of a self-sown volunteer that appeared under C. mastacanthus, and eventually smothered it. It began winning Royal Horticultural Society medals in 1933. This small, deciduous, aromatic shrub has grey-green leaves and produces masses of blue flowers in late summer. There are several cultivars with flowers in shades of blue or white, including 'Blue Mist', 'Heavenly Blue', 'Longwood Blue', 'Dark Knight', 'Summer Sorbet' and 'Pershore'.