Cleistocactus tominensis
Cleistocactus tominensis is a species of columnar cactus in the genus Cleistocactus, endemic to Bolivia, where it is found in forests, on cliffs, and in inter-Andean valleys at altitudes of 900 to 2,200 meters.
Description
Cleistocactus tominensis grows as a shrub with initially unbranched, later branched at the base, parallel, upright shoots and reaches heights of 1 to 2 meters with a diameter of up to 5 centimeters. There are 13 to 22 low, transversely furrowed ribs with brown areoles 1 cm apart. The 1 to 3 thin, central spines are yellowish to reddish, turn gray with age and are 10–15mm long and 0-20 radial spines. They are difficult to distinguish in central and radial spines.The narrow tubular flowers are green to yellow to pink or occasionally green at the base and red towards the tips. They are 2.5-3 centimeters long and 7–9mm wide. The bracts are fairly spread out. The spherical, light pink–brown fruits reach a diameter of up to 1.5-1.8 centimeters.