Hydric

Hydric is an adjective used in ecology and soil science to describe environments, soils, and vegetation that are associated with or require abundant water. Derived from the Greek hydro- meaning water and -ic meaning pertaining to, the term helps distinguish conditions that are wet for extended periods from drier or moderately moist conditions.

In soil science, hydric soils are those that are saturated with water long enough during the growing season to create anaerobic conditions in the upper part of the soil. These soils are a common feature of wetlands, and regulatory agencies often use hydric soil indicators as part of wetland delineation and protection programs.

In botany, hydric or hydrophytic plants are those adapted to saturated soils or aquatic habitats and may exhibit adaptations such as aerenchyma, shallow root systems, or floating or emergent growth forms.

Hydric is contrasted with xeric (dry) and mesic (moderately moist) conditions. The term informs land management and ecological restoration by signaling waterlogged conditions that influence soil chemistry, plant communities, and nutrient cycling. In regulatory contexts, recognition of hydric soils and hydric vegetation supports decisions related to conservation, development, and watershed management.