Nibulb Thawgrass

The nibulb thawgrass split from its ancestor the thawgrass. It is quite similar to its smaller ancestor and still produces NaOH in its now larger bubble-sack that is used to create heat and thaw the ice and snow around it in the colder seasons. It also gives the root a vinegar taste that makes it less appealing to herbivores. The main new adaption it has gained is a symbiotic relation with the microorganism nitroid. They now grow these in a huge sub-bulb on the bottom of its bulb. These nitrogen-fixing microorganisms give the plant a supply of nitrogen that helps it grow much faster, something that could be critical before winter comes. That nitro-bulb has a gray tilt because of the yellow nitroids that live in it. The sub-bulb is divided into thousands of small chambers to give the plant more control over them.