Centaurea Jacea Subsp. Nigrescens

Centaurea jacea subsp. nigrescens is a lesser-known variant of the common knapweed, found primarily in the mountainous regions of southern Europe. This subspecies is distinguished by its dark purple to black flowers, which contrast sharply with its finely divided, silver-green leaves. It thrives in dry, sunny habitats such as rocky slopes and gravelly soils, often growing in open, disturbed areas. Despite its beauty, it is not widely cultivated, making it a rare sight in gardens and botanical collections. Its unique coloration and habitat preferences make it an interesting subject for botanists and plant enthusiasts alike.