Lewis Short
lappa | Lappa, ae (noun F.m) :
* A bur, Verg. G. 1, 153; Ov. P. 2, 1, 14; Plin. 18, 17, 44, § 153; 21, 17, 64, § 104 al.
* A Roman surname; e. g. Rubrenus Lappa, a tragedian, Juv. 7, 72.
Charlton T. Lewis, Charles Short, A Latin Dictionary