| Cynanchum trichophyllum L.O. Williams, 1968 |
| Cynanchum unifarium (Scheele) Woodson, 1941 |
| Cynanchum uniflorum Sessé & Moc., 1894 |
| Cynanchum villosum Schult., 1820 |
| Cynanchum wigginsii Shinners, 1964 |
| Cynopaema Lunell, 1916 |
| Cynopaema cannabinum (L.) Lunell, 1916 |
| Dictyanthus Decne., 1844 |
| Dictyanthus aeneus Woodson, 1935 |
| Dictyanthus altatensis (Brandegee) W.D. Stevens, 2000 |
| Dictyanthus asper (Mill.) W.D. Stevens, 1999 |
| Dictyanthus campanulatus Rchb., 1850 |
| Dictyanthus eximius (W.D. Stevens) W.D. Stevens, 2000 |
| Dictyanthus hamatus (W.D. Stevens) W.D. Stevens, 2000 |
| Dictyanthus lautus (W.D. Stevens) W.D. Stevens, 2000 |
| Dictyanthus macvaughianus (W.D. Stevens) W.D. Stevens, 2000 |
| Dictyanthus nichongus L.O. Alvarado, R. Sánchez Cris. & A. López Hern., 2022 |
| Dictyanthus parviflorus Hemsl., 1882 |
| Dictyanthus pavonii Decne., 1844 |
| Dictyanthus reflexiflorus Lozada-Pérez, E.B. Cortez & Martínez-Ambr., 2025 |