Wang L, Zhang H, Watson MF, Knapp S.

On the identity of Sium frigidum (Apiaceae)

. Phytotaxa [Internet]. 2016 Dec. 16 [cited 2025 Dec. 6];288(3):265–272. Available from: https://phytotaxa.mapress.com/pt/article/view/phytotaxa.288.3.7