[4] Kimnachia ramulosa is a shrubby plant, branching freely from the base.

The stems are rounded basally, with branches that become flattened towards their tips.

[5] The species was first described by Joseph zu Salm-Reifferscheidt-Dyck in 1834, as Cereus ramulosus.

[8] A molecular phylogenetic study of the tribe Hylocereeae was published in 2017.

The results suggested that the genus Pseudorhipsalis was only monophyletic if Ps.