Lewis & Short

ĕbŭlum, i, n., and ĕbŭlus, i, m., Dane-wort, dwarf-elder: Sambucus ebulus, Linn.; Cato R. R. 37, 2; Plin. 26, 11, 73, § 119 sq.; Verg. E. 10, 27; Col. poët. 10, 10 al.