Rhipsalis madagascariensis in Andasibe, Madagascar

''Rhipsalis baccifera'', commonly known as the Mistletoe Cactus, is an epiphytic cactus which originates from Central and South America, the Caribbean and Florida. It is also spread throughout the tropics of Africa and into Sri Lanka. This is the only cactus species naturally occurring outside the New World. One theory is that it was introduced to the Old World by migratory birds, long enough ago for the Old World populations to be regarded as distinct subspecies. The alternative theory is that.. more