Definition
Water lobelia (Lobelia dortmanna) is an aquatic plant that grows submerged in clear, nutrient-poor lakes and ponds. This plant has slender, grass-like leaves and produces small, pale blue or white flowers that rise above the water's surface. It's like a hidden treasure in pristine waters. It requires very clean water to thrive, which makes it an indicator of environmental health. Unlike surface-dwelling plants, water lobelia lives most of its life underwater.