The genric name comes from two parts, lophos, which means the stems have a crest of bristly spines and cerei and that means freely branching columnar cacti. They are found in north-western Mexico to south-western US and often in sandy areas. Due to the location, they survive in high temperatures. The stems are light-green with the flowers going from white to dark red.
I am fairly confident that the name for this cactus is Lophocereus schottii monstrose. At the time of writing I have not had it for too long as it should become much higher in time.
Adromischus ~ Astrophytum ~ Cephalocereus ~ Cereus ~ Cyanotis ~ Echinopsis ~ Epiphyllum ~ Espostoa ~ Ferocactus ~ Frithia ~ Gymnocalycium ~ Haworthia ~ Hildewintera ~ Lithops ~ Mammillaria ~ Notocactus ~ Opuntia ~ Pilosocereus ~ Rebutia ~ Schlumbergera ~ Sedum ~ Sempervivum ~ Stenocereus ~ Sulcorebutia ~ Tephrocactus ~ Turbinicarpus ~ Weberbauerocereus