Appearance
This slow-growing species can reach sizes to 2.5 metres tall to 1.5 metres wide and can live over a hundred years. What is probably the largest individual living today is one called "Goliat" at the "Area Natural de Daxpe" in Mexico, which is 9' 8" in height, at least three feet thick and weighs three metric tons Their stems are a gray-ish blue color and the straight, rigid spines are black. The apex of the cactus is flat and covered with a yellow felt-like substance. They're heavily ribbed and have large areoles. Their diurnal, tubular flowers bloom at the end of spring to summer and are a vivid yellow color, they grow about 2 centimetres in height and 3 centimetres broad. The fruit is about 3 centimetres long and is covered by a hairy wool.References:
Some text fragments are auto parsed from Wikipedia.