| Crocanthemum hirsutissimum (C.Presl) Janch. | Helianthemum hirsutissimum C.Presl |
| Crocanthemum majus (L.) Britton | Crocanthemum canadense (L.) Britton |
| Crocanthemum spartioides (C.Presl) Janch. | Helianthemum spartioides C.Presl |
| Crocanthemum stenophyllum (Urb.) Janch. | Crocanthemum rosmarinifolium (Pursh) Janchen |
| Crocanthemum thyrsoideum (Barnhart) Janch. | Crocanthemum nashii (Britton) Barnhart |