Cruciata glabra

Cruciata glabra, smooth crosswort, is a species of flowering plant in the genus Cruciata, native to Morocco, Algeria, southern, central and eastern Europe, the Caucasus, Kazakhstan, the Altai, and western Siberia. It is often found in beech (Fagus sylvatica) forests.

Subspecies
The following subspecies are currently accepted:


 * Cruciata glabra subsp. balcanica (Ehrend.) Soó
 * Cruciata glabra subsp. glabra
 * Cruciata glabra subsp. hirticaulis (Beck) Natali & Jeanm.
 * Cruciata glabra subsp. krylovii (Iljin) E.G.Naumova