Thanos' Grass
Despite its name, Thanos’ grass is basically just lowly savannah grass. Descended from Thanos’ shrub, this grass-like polyph reproduces quickly and carpets the region that borders Zone 17, creating a grassland or savannah-like environment. No longer tall enough to distribute its seeds by wind, it instead drops them around itself. As long as there is water, they sprout and grow very quickly; during the dry season, this polyph stops reproducing until there is enough water to start again, while those closer to Zone 17 where the ground is wetter reproduce almost year-round unless the water levels drop. The wooden trunk of its ancestor is retained and still contains water, but it has been reduced to such a small size that this polyph relies more on its environment than on water storage, hence it exclusively living near water. The remnants of its trunk rarely grow taller than 2 inches, but its leaves can grow up to a foot long if they are not trimmed by herbivores. Its roots are thin and hairy, and go only half its height below ground and spread out about the same amount in each direction; they may be slightly larger in drier parts of its range. In favorable conditions, it can reach reproductive maturity from a seed in 2 weeks, but can take as long as 3 months in drier conditions and will not grow at all during the dry season in the more arid parts of its range.
