| Cologania jaliscana S. Watson, 1891 |
| Cologania lemmonii A. Gray, 1883 |
| Cologania martia S. Watson, 1882 |
| Cologania nelsonii Rose, 1903 |
| Cologania obovata Schltdl., 1838 |
| Cologania ovalifolia Kunth, 1823 |
| Cologania pallida Rose, 1903 |
| Cologania pringlei S. Watson, 1890 |
| Cologania procumbens Kunth, 1824 |
| Cologania pulchella Kunth, 1823 |
| Cologania pulchella var. racemosa (B.L. Rob.) Rose, 1894 |
| Cologania racemosa (B.L. Rob.) Rose, 1903 |
| Cologania rufescens Rose, 1903 |
| Cologania scandens Rose, 1903 |
| Cologania tenuis Rose, 1906 |
| Colutea L., 1753 |
| Colutea americana Mill., 1768 |
| Colutea frutescens L., 1753 |
| Condylostylis Piper, 1926 |
| Condylostylis candida (Vell.) A. Delgado, 2011 |