| Dalea megacarpa S. Watson, 1885 |
| Dalea megalostachys (Rose ex Rydb.) Wiggins, 1940 |
| Dalea melantha Schauer, 1847 |
| Dalea melantha var. berlandieri (A. Gray) Barneby, 1977 |
| Dalea melantha var. cineracea Barneby, 1977 |
| Dalea melantha var. melantha Schauer, 1847 |
| Dalea melantha var. pubens Barneby, 1977 |
| Dalea mexiae Barneby, 1977 |
| Dalea minor (Rose) Brandegee, 1905 |
| Dalea minutiflora (Rose) Bullock, 1939 |
| Dalea minutifolia (Rydb.) Harms, 1923 |
| Dalea mixteca Barneby, 1977 |
| Dalea mollis Benth., 1848 |
| Dalea mollis subsp. pilosa Wiggins, 1940 |
| Dalea mollis var. longipila B.L. Rob. ex Rydb., 1919 |
| Dalea mollis var. mollissima (Rydb.) Munz, 1935 |
| Dalea mollis var. neomexicana A. Gray, 1852 |
| Dalea mollissima (Rydb.) Munz, 1958 |
| Dalea mucronata DC., 1825 |
| Dalea multiflora (Nutt.) Shinners, 1949 |