Place
- Cerrote, near Adjuntas1
- Clackamas1
- Clark1
- Columbia Gorge, banks of sandy river, NE Multnomah county1
- Columbus1
- Connecticut1
- Coshocton1
- Crawford1
- Crum Creek, side stream above Media Short Line1
- Cypress Creek Unit of Mississippi State University Expt. Forest1
- Delaware1
- Ecuador1
- Florida1
- Frenchtown1
- Georgia1
- Glenn1
- Highlands1
- Hills of Hood Peak Range, east of Agus Caliente1
- Jayapriya1
- Kentucky1