Question

world biggest cactus. It can be 50 ft tall and 2 ft thick

Answer 1

saguaroCardon is the tallest cactus species in the world, with a maximum recorded height of 19.2 m (63 ft), with a stout trunk up to 1 m (3.3 ft) in diameter bearing several erect branches. In overall appearance, it resembles the related saguaro (Carnegiea gigantea), but differs in: fewer ribs on the stems.

Answer 2

this is the biggest cactus also check at google