Bajoran lilacs are a flowering plant found on Bajor.
Lilacs were Kira Meru's favorite flower, something which Kira Taban told his daughter Nerys about. In 2346, Skrain Dukat gave her a bouquet of lilacs. In 2374, on the day that would have been her mother's sixtieth birthday, Kira had Quark obtain some lilacs to honor her mother's memory. (DS9 episode: "Wrongs Darker Than Death or Night")