Carpet Bulb
A mutation(insert dramatic violin and piano) causes other root structures to grow from the root of a Bulbus terrous specimen. Since the roots also interpreted themselves as a part of a different plant, they started growing bulbs(imagine it as coding. A bug causes a stimuli to be repeat more than it should have. Since another line of code activates when it is present, they respond to the extra stimuli in this case, growing extra bulbs) since this mutation increased their net sunlight gain, survive if a root was damaged, and allowed them to share nutrients with eachother, this mutation was selected for.
The bulbs of Bulbus pansoma are smaller than their ancestors due to them putting as much resource into carpeting as possible. The root system will grow randomly in search of an area with sunlight. Once discovered, a bulb will form there. Due to being smaller than the majority of producers in zone D, the will release a weak necrotic enzyme from their roots to ward off other floor producers, such as clearensis which allows them to fully take advantage of their horizontal growth. The enzyme also slightly damages itself, but the effects are nullified by regenerating cells and bulbs. If a bulb is somehow damaged, all of the bulbs connected to it will being sensing nutrients to repair its cells. They can reproduce either via sporting or via carpeting(if bulb that are part of the same root systems were to be separated).
