A perennial from the Rubiaceae family, Asperula tinctoria is widespread across a large part of temperate and continental Europe, from eastern France to western Siberia, passing through central Europe and the Baltic countries. It occupies dry to mesophilic meadows, edges of light forests, calcareous lawns, and sunny roadsides, generally in plains and mid-mountains.
It forms upright to slightly spreading tufts, 20 to 50 cm in height, with slender stems, very branched in their upper part, giving the plant in bloom an airy and ethereal appearance similar to that of a gypsophila. The leaves are linear to linear-lanceolate, arranged in whorls, of a fairly tender medium green.
The flowers are tiny, tubular, pure white to creamy white, grouped in very branched and light terminal cymes that form a dense and delicate white cloud above the foliage. It is precisely this effect of an airy mass, visible in the photograph where the plant covers the ground with a bright white veil, that constitutes the most striking feature of the species in full bloom. In its natural habitat, its flowering extends from June to August.
Its epithet tinctoria recalls that it was once used as a dye plant: its roots provided a red dye, similar to madder, to which it is botanically related. In cultivation, it accepts ordinary well-drained soil, a sunny to semi-shaded exposure, and is suitable for naturalized flowering meadows.