Leucostele deserticola

Leucostele deserticola is a species of cactus native to South America.

Description
Leucostele deserticola grows shrubby, branches from the base with more or less upright branches and reaches heights of 1 to 1.5 meters. The shoots are cylindrical. There are eight to twelve deeply notched ribs, which are conspicuously grooved transversely above the areoles. The areoles on them are covered with dark wool - occasionally orange in the new shoots - and are up to 1.5 centimeters apart. The one to three central spines are sometimes curved and up to 12 centimeters long. The 15 to 25 unequal, thin-shaped marginal spines are darker and turn gray with age. They are 1 to 1.5 centimeters long.

The funnel-shaped, white flowers are 7 to 8 centimeters long. Its pericarpel and flower tube are covered with dark wool. The spherical, green fruits are tasty.

Distribution
Leucostele deserticola is widespread in the Chilean regions of Antofagasta and Atacama on the hills of the Cordillera de la Costa up to altitudes of 1000 meters.

Taxonomy
The first description as Cereus deserticola by Erich Werdermann was published in 1929. The specific epithet deserticola is derived from the Latin words desertus for 'desert' and -cola for 'dwelling' and refers to its occurrence in very dry areas. Boris O. Schlumpberger placed the species in the genus Leucostele in 2012. Further nomenclatural synonyms are Trichocereus deserticolus (Werderm.) Looser (1929), Trichocereus deserticola (Werderm.) Backeb. (1936) and Echinopsis deserticola (Werderm.) H.Friedrich & G.D.Rowley (1974).