Siser | Webster's Dictionary of the English Language

siser
sĭser, ĕris, n. (masc. in plur. siseres, Plin. 20, 5, 17, § 35) [σίσαρον], a plant with an esculent ...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
siser
siser eris, n , σίσαρον, a plant with an esculent root, skirwort, H. ...

An Elementary Latin Dictionary