Trichostema micranthum is a species of flowering plant in the mint family, known by the common name smallflower bluecurls.

Trichostema micranthum is an annual herb growing to under 3 decimetres (12 in) in maximum height.

Its aromatic foliage is coated in short, glandular and nonglandular hairs.

The inflorescence is a series of clusters of flowers located at each leaf pair.

Each flower has a hairy calyx of pointed sepals and a tubular, lipped purple corolla a few millimeters in length.