| Type: | Alliance |
| Parent classification: | Appalachian-Northeast Wet Meadow & Shrub Swamp |
| Scientific Name: | Dulichium arundinaceum - Polygonum hydropiperoides - Carex spp. Sinkhole Marsh Alliance |
| Location: | United States (Virginia, West Virginia, New Jersey, Pennsylvania) |
| Description: | This sinkhole pond community occurs in mostly seasonally flooded (rarely semipermanently flooded) depression ponds in the Central Appalachian, Ridge and Valley, and Northern Blue Ridge regions. |
| Website: | View website |