Cleistocactus colademononis

Cleistocactus colademononis grows hanging and branches at the base, reaching up to 2.5 meters in length. Its light green stems are 3 to 7 centimeters in diameter and feature 14 to 20 low ribs. Areoles are spaced 3 to 6 millimeters apart and produce 0 to 4, sometimes up to 8, downward-pointing, bristle-like, yellowish spines, along with 20 to 50 hair-like, white spines that are 4 to 8 centimeters long (up to 12 cm). The hair-like spines regenerate over time. The flowers are zygomorphic, measuring 7 to 8 centimeters long, and are a vibrant red. They emerge almost horizontally from the areoles. The fruit is spherical, reddish, and 8 to 12 millimeters in diameter. When dried, it splits lengthwise. The seeds are black, slightly curved, and measure 1.1 to 1.4 millimeters long.^[4]

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  Flower
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  Plant
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  Dried fruits and seeds

Cleistocactus colademononis is endemic to Bolivia, specifically in the Santa Cruz department, province of Florida, about 30 kilometers east of Samaipata, on Cerro el Fraile mountain. It grows at altitudes below 1500 meters, on humid, steep rock faces where it hangs.