| Carpinus caroliniana American hornbeam View 20 images |  |
| Carya glabra Pignut hickory View 2 images |  |
| Carya ovata Shagbark hickory View 4 images |  |
| Caltha palustris Yellow marsh marigold View 8 images |  |
| Campsis radicans Trumpet creeper View 40 images |  |
| Campanula rotundifolia Bluebell bellflower View 19 images |  |
| Ceanothus americanus New jersey tea View 21 images |  |
| Celastrus scandens American bittersweet View 4 images |  |
| Chamerion angustifolium ssp. angustifolium Fireweed View 32 images |  |
| Chamaelirium luteum Blazing star View 4 images |  |
