Copperbell

This modest-sized cactus grows up to 38 feet (11.6 meters) tall. The slender, pointed stem is copper, and is dotted with small light grey spines.

It is slow growing, taking 17 years to reach maturity. Once mature, a single flower with solid dark brown petals decorated with faded yellow dots and a blood red central disk grows at the top, reappearing once every 4 years. The flower head is largely flat with 23 widely spaced round-tipped petals. It has a strong scent that smells like old books.

The cactus's skin is nearly impenetrable, the green flesh is smooth, and the cyan sap is thin and causes upset stomachs if consumed.