| Locality: | United States. Kentucky. Boone: 2 miles W of Petersburg; At Aurora ferry (just opposite Aurora, Indiana). Along Ohio River. |
| Description: | petals white. Sheet 1 of 2: flowers. |
| Habitat: | LOCATION NOTES: At Aurora ferry (just opposite Aurora, Indiana) ca. 2 miles west of Petersburg. Along Ohio River. HABITAT NOTES: Marsh community around drying pond in opening in river bank forest. |