The plant also reproduces itself by extending a long stolon or runner. These stolons are sometimes 3 meters (9 feet) or more in length in to reach another branch. A specimen often uses the method to extend itself to another branch and is how canopy plants move around when they want to spread to another portion of the tree.
They will grow these long thin appendages (see photo, left) that moves laterally, upwards or downwards until it finds a place that gives the the specimen an additional growth platform. At that point, it begins to produce cladode flattened stems (see top of photo) and establishes a new plant. My Epiphyllum oxypetalum, in four large pots, has just been pruned by hurricane damage, but I've had many cladodes like your long arching one. Mine grow outside hanging in red maples, Acer rubrum. Which also were dramatically pruned.
Epiphyllum Crenatum
The cacti are out year round, in the same trees with and without foliage. So they get direct sun at times.
Epiphyllum Phyllanthus Pdf Free
Those with significantly more sun turn reddish. Blooming does not appear to be related to the amount of sun, or even the type of potting medium, but seems to be more frequent on plants that are allowed to grow without pruning.