River Bubbleweed

River Bubble Weed split from Purple Sea Bubbleweed. It is exactly the same in every way except it can grow in fresh water. It grows up and down the Bone River to the Bone Swamp. Like its ancestor it still has hydrogen filled seed bubbles. These bubbles also keep the leaves upright and it buoyant in the water. This works much like Earth's kelp, except with its bubbles fall off they actually float up and out of the water into the air. Then land back into the water. They asexually reproduce with these bubble seed/spores.