Common name: Singleflower knapweed. Scientific name: Centaurea uniflora.

Singleflower Knapweed (Centaurea uniflora), is a perennial herbaceous plant belonging to the genus Centaurea of the Asteraceae family. The stem is erect, green-gray leaves, purplish-pink flower. It grows to a height of 40-50 cm. blooming in June to September.