Forested or shrub-dominated wetlands with standing or slow-moving water, typically found along rivers and lake margins.

Peat-forming wetlands that share characteristics of both bogs and fens; classification may be ambiguous at the boundary.

Wetlands dominated by emergent herbaceous plants such as cattails and sedges, with mineral-rich standing or slow-moving water.

Peat-accumulating wetlands fed by groundwater or surface runoff, less acidic than bogs and supporting sedges and brown mosses.