Echinopsis schickendantzii, synonyms including Soehrensia schickendantzii, is a cactus found in northwestern Argentina.
Echinopsis schickendantzii grows as a shrub, occasionally solitary, but usually branching out from the base and formin clumps. The cylindrical to elongated, shiny light green shoots are long and have diameters of up to . There are 14 to 18 low and somewhat sharp ribs that are notched. The areoles on it are very close together and occasionally even touch. The yellowish thorns originating from the areoles are flexible and up to long. Four central spines are formed. Occasionally the number increases with age. There are nine marginal spines.
The hypanthium is tubular to funnel-shaped. White, unscented flowers appear near the top of the shoot and open at night. They are long. The flower tube is densely hairy black. The spherical, dark green fruits are sweet and tear open. They have a length of up to and a diameter of .
The plant was first described by Frédéric Albert Constantin Weber in 1896 as Echinopsis schickendantzii. Boris Oliver Schlumpberger transferred it to the genus Soehrensia in 2012. The Latin epithet schickendantzii honors the German chemist Friedrich Schickendantz (1837âÂÂ1896), who emigrated to Argentina in 1861. , Plants of the World Online retained the species in the genus Echinopsis.
Echinopsis schickendantzii is native to northwestern Argentina. Plants are found iin the provinces of Salta, Catamarca, Jujuy and Tucumán. Some sources also state that it occurs in Bolivia in the departments of Tarija, Chuquisaca and Santa Cruz at elevations of . Plants are found growing in high elevation grassland and Yungas forest.