Sison segetum Linnaeus, Species Plantarum 1: 252. 1753.

"Habitat in Angliae agris inter segetes." RCN: 2031.

Lectotype (Reduron & al. in Jarvis & al. in Taxon 55: 214. 2006): [icon] " Sium terrestre seu segetale Nobis" in Morison, Pl. Hist. Univ. 3: 283, s. 9, t. 5, f. 6. 1699. - Epitype (Jury & Southam in Jarvis & al. in Taxon 55: 215. 2006): "37 Sison segetum L. Hall. N. 779. Cl. Lachenal invenit et mihi semen communicavit", Herb. J.J. Roemer in Herb. R.J. Shuttleworth, Recd 1877 (BM).

Current name: Petroselinum segetum (L.) W.D.J. Koch ( Apiaceae).