Cactus
Cacti are vegetation plants that produces prickly pears.
Appearance
Cacti vary in shape based on the plant's growth, but are currently the tallest plants in the game. The thick spiny stems may extend several blocks high and may have up to several arms connected to the stem. They appear green with faint areoles extending up the ribs of the stem. When a cactus dies, it will turn black and begin despawning from the top down. There have been no evidence or reports of any items being left behind.
Where Found
Farming
Cacti are primarily used in the production and farming of prickly pears. Prickly Pears can be planted in a block of sand or compost to produce additional cacti and yielding more prickly pears. Harvesting of prickly pears are achieved by hand on a mature cacti bearing the fruit. Harvesting a block of cactus will produce a stick, and using a machete will produce three. This makes cacti similar to an all-leaf tree.
Notes
Climbing on a cactus will reduce the Health of a Blockhead and cause them to make an "Ow" sound of pain. Placing ladders over the cactus does not prevent this.