Consolea moniliformis

Consolea moniliformis is a species of cactus that is native to Cuba, Hispaniola (Dominican Republic and Haiti), and Puerto Rico (on Mona Island, Culebra and Desecheo).
Ecology and habitat.
"Consolea moniliformis" can be found at elevations from sea level to about 50 metres. 
In Cuba, it occurs in dry littoral forest. It also occurs on limestone. In Puerto Rico, it occurs in open dry forests and is sparsely distributed. In Santiago de Cuba it is cultivated in gardens. It occurs abundantly. Its population is male-biased throughout the range. It is unknown whether there is seedling recruitment in the wild.
Description.
It is a tree-like cactus species to 4(-7) m height, freely branching in the crowns. In this species, as in a few other opuntias, the fruits are quite proliferous, often in long chains of 2-5 (or more) individuals or forming compound clusters. They hang on for a number of years and usually remaining green. They are, however, easily detached, and, when falling to the ground, they readily take root and start new colonies.
Common names in various languages.
Common names include: