Copperactus

This large cactus grows up to 76 feet (23.2 meters) tall. The very thin stem is copper, and is dotted with small olive spines.

It is very fast growing, taking 10 months to reach maturity. Once mature, and only under the right conditions, a handful of flowers, with petals that are either green or light grey, with a yellow center, grow at the top, reappearing after 7 years, but only when the conditions are right again. The flower head is made up of many petals; the lower layer of petals are flat, while the upper layers form a tight sphere. It has a strong scent that smells like candle wax.

The cactus's skin is nearly impenetrable, the pastel orange flesh is smooth, and the blue sap is thin.