Harrisia

Harrisia

Harrisia Britt.
Engl.: applecactus.

Harrisia divaricata

Harrisia divaricata (Lam.) Lourteig.
Bot. syn.: Cactus divaricatus Lam. non Kuntze, Cereus divaricatus (Lam.) De Cand., Cereus nashii (Britt.) Vaupel, Harrisia hurstii W. T. Marschall, Harrisia nashii Britt., Pilocereus divaricatus (Lam.) Lemaire.

I have no articles for this botanical term, but there might be some for the next level down (if found).