| Campanulastrum americanum American bellflower View 5 images |  |
| Calamagrostis canadensis Bluejoint View 1 images |  |
| Callirhoe involucrata Winecup View 38 images |  |
| Carya ovata Shagbark hickory View 4 images |  |
| Campanula rotundifolia Bluebell bellflower View 19 images |  |
| Carex stipata Owlfruit sedge View 1 images |  |
| Ceanothus americanus New jersey tea View 21 images |  |
| Cercis canadensis Eastern redbud View 21 images |  |
| Celtis occidentalis Common hackberry View 2 images |  |
| Cephalanthus occidentalis Common buttonbush View 26 images |  |
