Cyanactus

This large cactus grows up to 102 feet (31.1 meters) tall. The pleated stem is light brown, and is covered in many fine, olive, hair-like spines. The mushroom-shaped body is light brown, and is covered in thick bunches of rigid cyan spines.

It is steady-growing, taking 12 months to reach maturity. Once mature, and only under the right conditions, a handful of flowers, with solid brown petals and a lime central disk, grow at the top, reappearing after 3 years, but only when the conditions are right again. The flower head is an uncoordinated mess of 15 petals. It has a powerful scent that smells like onion.

The cactus's skin is rock-hard, the brilliant red flesh is sticky, and the green sap is thin and causes vomiting if consumed.