Climbing hydrangea inspired plant

Plant which grows over the sides of walls and to a small extent vertically on its own, forming zebralike patterns of green and grey in caves. The plant grows in 2 forms, one is like a leaf block and is the structural part and the other is the flowering part which sprouts from every side off of the leaf blocks. The assigned tool for breaking it would be a sword (although shears will drop the block intact) when broken would drop some sort of vine like item which can be fashioned into a vine chain for botanical builds or crafted into a 3x3 to get a sprout bud which will grow a new plant slowly creeping over time getting slower each time it grows to an eventual max length.