Soehrensia strigosa

Echinopsis strigosa, is a species of Soehrensia in the cactus family. It is native to north western Argentina. It was first published in Cactaceae Syst. Init. 28: 31 in 2012.

It was formerly a species of Echinopsis.

Description
Soehrensia strigosa grows shrubby, branching out from the base and forming dense clumps up to 1 meter in diameter. The cylindrical, erect or ascending shoots have a diameter of 5 to 6 centimeters and are up to 60 centimeters long. There are 15 to 18 very low and blunt ribs. The circular, large areoles located on them are initially white and are up to 0.8 centimeters apart. The numerous, finely needle-like, whitish to yellowish to reddish-brown thorns that emerge from them are occasionally darker-tipped. The approximately four central spines are up to 7 centimeters long. The nine to 16 radial spines are slightly shorter.

The funnel-shaped, white flowers open at dusk and stay open most of the following day. They are up to 20 centimeters long and have a diameter of 15 centimeters. The spherical, yellow to orange fruits are fleshy and 4 to 6.5 centimeters long.

Distribution
Soehrensia strigosa is widespread in the Argentine provinces of Salta, Tucumán, Catamarca, La Rioja, San Juan and Mendoza in the montane vegetation at lower altitudes from 700 to 2000 meters.

Taxonomy
The first description as Cereus strigosus by Joseph zu Salm-Reifferscheidt-Dyck was published in 1834. Boris O. Schlumpberger placed the species in the genus Soehrensia in 2012. Further nomenclature synonyms are Echinocereus strigosus (Salm-Dyck) Lem. (1885), Trichocereus strigosus (Salm-Dyck) Britton & Rose (1920) and Echinopsis strigosa (Salm-Dyck) H.Friedrich & G.D.Rowley (1974).