The bulbstalk split from its ancestor the orange spore stalk. It is almost identical to its ancestor except it has a huge water holding root. Also, due to the extreme sunlight it has changed to a lighter gray so that it will not overheat.
Their spores are still spread by the wind and are still kept inside a chamber placed on top of its stalk which is opened once the chamber is filled with spores. The spores can form thick orange clouds able to choke small animals like its ancestor before it, only the bulbstalk is even more numerous and the spores can now choke bigger animals.
Their roots drink water preventing it from drying out and also to cool down the cells in its body. The water will leave the bulbstalk through the stem, making it moist to the touch and photosynthesis more efficient. It also has a special adaptation allowing it to survive for months without rain and will soak up so much water when it rains that its bulb-like root bloats. When the bulb root has little water in it it will look like a shriveled up balloon.