Monsanto, 2nd, A, 169
Species Plantarum 1: 193. 1753. (1 May 1753) (Sp. Pl.
Note from IPNI: Gender: Rhamnus is a classical genus name. Although Linnaeus treated Rhamnus as masculine and the genus name has "-us" case ending, its gender is feminine (see Melbourne Code Art. 62 Ex. 1)
Rhamnus cathartica L.
LT designated by N. L. Britton & A. Brown, Ill. Fl. N.U.S. ed. 2. 2: 502 (1913)
, Flora of Panama
, Madidi Checklist