| Mertensia maritima (L.) Gray | | a | | Mertensia maritima(L.) Gray | |
| Mertensia sibirica (L.) G. Don | | a | | Mertensia sibirica(L.) G. Don | |
| Mertensia pterocarpa (Turcz.) Tatew. & Ohwi | | a | | Mertensia pterocarpa(Turcz.) Tatew. & Ohwi | |
| Mertensia spp. | | a | | Mertensia spp. | |
| Mertensia virginica (L.) Pers. ex Link | | a | | Mertensia virginica(L.) Pers. ex Link | |
| Mertensia ciliata (E. James ex Torr.) G. Don | | a | | Mertensia ciliata(E. James ex Torr.) G. Don | |
| Mertensia pulmonarioides Roth | Mertensia virginica (L.) Pers. ex Link | | | Mertensia pulmonarioidesRoth | Mertensia virginica(L.) Pers. ex Link |
| Mertensia simplicissima G. Don | Mertensia maritima (L.) Gray | | | Mertensia simplicissimaG. Don | Mertensia maritima(L.) Gray |
| Mertensia arizonica Greene | | a | | Mertensia arizonicaGreene | |
| Mertensia brevistyla S. Watson | | a | | Mertensia brevistylaS. Watson | |
| Mertensia paniculata (Aiton) G. Don | | a | | Mertensia paniculata(Aiton) G. Don | |
| Mertensia oblongifolia (Nutt.) G. Don | | a | | Mertensia oblongifolia(Nutt.) G. Don | |
| Mertensia arizonica Greene var. arizonica | | a | i | Mertensia arizonicaGreene var.arizonica | |
| Mertensia arizonica Greene var. leonardii (Rydb.) I. M. Johnst. | Mertensia arizonica Greene var. arizonica | | i | Mertensia arizonicaGreene var.leonardii (Rydb.) I. M. Johnst. | Mertensia arizonicaGreene var.arizonica |
| Mertensia leonardii Rydb. | Mertensia arizonica Greene var. arizonica | | | Mertensia leonardiiRydb. | Mertensia arizonicaGreene var.arizonica |