Echinopsis

This Genus is named after the Greek "echinos" for porcupine and "opsis" for appearance as it looks like a rolled up hedgehog.

E. eyriesii -

Native from Southern Brazil to Argentina.

Contains: hordenine

E. rhodotrica -

Native to Paraguay and Northwest Argentina.

Contains: hordenine, tyramine.

E. triumphans -

Reported to contain unspecified alkaloids.

E. tubiflora -

Native to the States of Tucuman, Salta and Catamarca in Argentina.

Reported to contain unspecified alkaloids.