Here's my theory behind this. The rose was carnivorous or is entering a carnivorous phase in its evolution. I can tell because some of the tentacles are mutated versions of spines; its leaf shape is well adapted to a carnivorous nature. Through the lack of care and a far from ideal environment, it activated its insectivorous nature to survive.
Here are some pictures of the tentacles, sorry for the resolution of my point and shoot camera .
cp rose1.jpg (92.01 KiB) Viewed 1971 times
cp rose2.jpg (178.28 KiB) Viewed 1971 times
cp rose 3.jpg (142.78 KiB) Viewed 1971 times