Ferula \Fer"u*la\, n. [L. ferula giant fennel (its stalks were used in punishing schoolboys), rod, whip, fr. ferire to strike; akin to OHG. berjan, Icel. berja. Cf. {Ferule}.] 1. A ferule. [Obs.] --Beau. & Fl. [1913 Webster] 2. The imperial scepter in the Byzantine or Eastern Empire. [1913 Webster] 3. [capitalized] A genus of plants of the parsley family {Apiaceae} (of the order {Umbelliferae}), including some yielding {asafetida}. Members include {Ferula asafoetida} ({Ferula foetida}), the giant fennel ({Ferula communis)}, and {Ferula orientalis}. [PJC]