Aegonychon purpurocaeruleum, commonly known as the purple gromwell, is a herbaceous perennial rhizomatous flowering plant and it belongs to the family Boraginaceae.

Leaves are dark green and lanceolate to narrow elliptic, with a prominent midrib on the underside.

The fruits are bright white capsules, 4–5 millimetres (0.16–0.20 in) long, with a glossy surface.

This species is rare in British Isles,[2] widespread in central Europe up to South Russia and in Mediterranean countries from Spain to eastern Turkey.

The plants prefer calcareous soils rich in humus, at elevations of 0–1,800 metres (0–5,906 ft) above sea level.