Toothache grass (Ctenium aromaticum)

Toothache grass thrives in fire-prone, sandy, and nutrient-poor environments, commonly found in southeastern U.S. pine savannas and flatwoods. As an indicator species, its presence reveals a well-maintained ecosystem with necessary fire cycles, which are crucial for sustaining biodiversity and overall health of these habitats. If toothache grass begins to decline, it may signal disruptions in the natural fire regime or other ecological imbalances.