| Locality: | United States. Kentucky. Pulaski: Burnside, General Burnside Island State Park, jct US 27 - KY 90, 0.2 mi across Causeway (1C-1002 Road). Elev. 246 m, 36°58'41.45N/84°35'44.24W. |
| Habitat: | Wetland seep-meadow at sharp curve at base of limestone-sandstone vertical highwall. Native annual, frequent. Associates: Equisetum arvense, E. hyemale var. affine, Fimbristylis autumnalis, Hypericum mutilum, Juncus marginalis, Nasturtium officinale, Platanus occidentalis, Salix exigua. |
| Collector: | R. L. Thompson, Katrina Rivers Thompson 13-424 |