| Cercocarpus mojadensis var. pringlei C.K. Schneid., 1905 |
| Cercocarpus montanus Raf., 1832 |
| Cercocarpus montanus var. argenteus (Rydb.) F.L. Martin, 1950 |
| Cercocarpus montanus var. glaber (S. Watson) F.L. Martin, 1950 |
| Cercocarpus montanus var. paucidentatus (S. Watson) F.L. Martin, 1950 |
| Cercocarpus paucidentatus (S. Watson) Britton, 1894 |
| Cercocarpus pringlei (C.K. Schneid.) Rydb., 1913 |
| Cercocarpus rotundifolius Rydb., 1913 |
| Cercocarpus rzedowskii Henrickson, 1987 |
| Cercocarpus treleasei C.K. Schneid., 1905 |
| Chamaebatia Benth., 1849 |
| Chamaebatia australis (Brandegee) Abrams, 1907 |
| Chamaemeles Lindl., 1821 |
| Chamaemeles mexicana Baill., 1869 |
| Cotoneaster Medik., 1789 |
| Cotoneaster denticulatus Kunth, 1824 |
| Cotoneaster lucidus Schltdl., 1854 |
| Cotoneaster nervosa Decne., 1874 |
| Cotoneaster pannosus Franch., 1890 |
| Cowania D. Don, 1824 |