*Centaurium erythraea Rafn

Corolla lobes 4–6 mm long, light red; corolla tube longer than the calyx. Leaves obovate to elliptic-oblong, 1–2 cm long. Erect herb up to 25 cm high. Widespread. Waste places, pastures and cleared land. Introd. from Europe. Fl. spring–summer Common Centaury