Maihueniopsis

F.Ritter

(Phil.) F.Ritter

An Atacama cushion cactus that changes the soil microclimate and living conditions of associated plants. Field studies were combined with metabolite analysis, showing links between cushion protection and the physiology of Atriplex imbricata.

A small, geophytic opuntioid also known as Puna clavarioides. The structure of the seed covering and ring-shaped embryo played an important role in comparing this species with today's Tephrocactus bonnieae.

(F.Ritter) F.Ritter

A northern Chilean species appearing in older literature under the names Tephrocactus conoideus and Opuntia conoidea. A viral sequence useful for studying Bevemovirus evolution was described in its public transcriptomic data.

F.Ritter

(Hensl.) F.Ritter

A species from northern Chile whose seeds provided two described isolates of endophytic bacteria. The genomic publications document microorganisms present inside seeds and make their sequences available for further research.

G.J.Charles

(Haw.) R.Kiesling

F.Ritter

A cushion species of Patagonia with olive-green segments, strong spines and yellow flowers. In the 2014 germination paper it appears as Maihueniopsis darwinii var. hickenii. Its seeds responded to pretreatments differently from Maihuenia patagonica, studied at the same time.

(Werderm.) F.Ritter ex P.C.Guerrero & Helmut Walter

(Backeb.) R.Kiesling

Speg.

(Pfeiff.) F.Ritter

(Salm-Dyck ex Pfeiff.) D.R.Hunt

(Espinosa) Katt. & Lodé

F.Ritter