German-violet

Exacum affine, described in 1883 by Balf.f. ex Regel, is a small herbaceous plant endemic to Socotra. It belongs to the Gentianaceae family and is known for its dark green, ovate leaves and small purple flowers that have a yellow center and a distinct fragrance. The plant is adapted to rocky environments in its native range. Due to its cultivation outside of its natural habitat, it has occasionally become a weed in greenhouses. It is commercially known as Persian violet and is popular in horticulture.