| 1 | Cephalanthus | occidentalis | Common Buttonbush | Madder Family | Rubiaceae | Magnoliopsida |
| 2 | Diodia | teres | Poorjoe | Madder Family | Rubiaceae | Magnoliopsida |
| 3 | Diodia | virginiana | Virginia Buttonweed | Madder Family | Rubiaceae | Magnoliopsida |
| 4 | Galium | anglicum | Lamark's Bedstraw | Madder Family | Rubiaceae | Magnoliopsida |
| 5 | Galium | aparine | Cleavers | Madder Family | Rubiaceae | Magnoliopsida |
| 6 | Galium | arvense | Blue Woodruff | Madder Family | Rubiaceae | Magnoliopsida |
| 7 | Galium | asprellum | Rough Bedstraw | Madder Family | Rubiaceae | Magnoliopsida |
| 8 | Galium | boreale | Northern Bedstraw | Madder Family | Rubiaceae | Magnoliopsida |
| 9 | Galium | circaezans | Licorice Bedstraw | Madder Family | Rubiaceae | Magnoliopsida |
| 10 | Galium | concinnum | Shining Bedstraw | Madder Family | Rubiaceae | Magnoliopsida |
| 11 | Galium | hispidulum | Coastal Bedstraw | Madder Family | Rubiaceae | Magnoliopsida |
| 12 | Galium | lanceolatum | Lance-leaved Wild Licorice | Madder Family | Rubiaceae | Magnoliopsida |
| 13 | Galium | latifolium | Purple Bedstraw | Madder Family | Rubiaceae | Magnoliopsida |
| 14 | Galium | mollugo | Hedge Bedstraw | Madder Family | Rubiaceae | Magnoliopsida |
| 15 | Galium | obtusum | Blunt-leaved Bedstraw | Madder Family | Rubiaceae | Magnoliopsida |
| 16 | Galium | pedemontanum | Piedmont Bedstraw | Madder Family | Rubiaceae | Magnoliopsida |
| 17 | Galium | pilosum | Hairy Bedstraw | Madder Family | Rubiaceae | Magnoliopsida |
| 18 | Galium | tinctorium | Stiff Marsh Bedstraw | Madder Family | Rubiaceae | Magnoliopsida |
| 19 | Galium | tinctorium var. floridanum | Stiff Marsh Bedstraw (floridanum) | Madder Family | Rubiaceae | Magnoliopsida |
| 20 | Galium | tinctorium var. tinctorium | Stiff Marsh Bedstraw (tinctorium) | Madder Family | Rubiaceae | Magnoliopsida |
| 21 | Galium | tricornutum | Roughfruit Corn Bedstraw | Madder Family | Rubiaceae | Magnoliopsida |
| 22 | Galium | triflorum | Fragrant Bedstraw | Madder Family | Rubiaceae | Magnoliopsida |
| 23 | Galium | verum | Yellow Spring Bedstraw | Madder Family | Rubiaceae | Magnoliopsida |
| 24 | Houstonia | caerulea | Azure Bluets | Madder Family | Rubiaceae | Magnoliopsida |
| 25 | Houstonia | longifolia var. compacta | Long-leaved Bluet | Madder Family | Rubiaceae | Magnoliopsida |
| 26 | Houstonia | micrantha | Southern Bluets | Madder Family | Rubiaceae | Magnoliopsida |
| 27 | Houstonia | purpurea var. purpurea | Purple Bluet | Madder Family | Rubiaceae | Magnoliopsida |
| 28 | Houstonia | pusilla | Small Bluet | Madder Family | Rubiaceae | Magnoliopsida |
| 29 | Houstonia | serpyllifolia | Creeping Bluet | Madder Family | Rubiaceae | Magnoliopsida |
| 30 | Houstonia | tenuifolia | Longleaf Summer Bluet | Madder Family | Rubiaceae | Magnoliopsida |
| 31 | Mitchella | repens | Partridgeberry | Madder Family | Rubiaceae | Magnoliopsida |
| 32 | Oldenlandia | uniflora | Clustered Mille-graines | Madder Family | Rubiaceae | Magnoliopsida |
| 33 | Richardia | scabra | Rough Mexican Clover | Madder Family | Rubiaceae | Magnoliopsida |
| 34 | Sherardia | arvensis | Blue Fieldmadder | Madder Family | Rubiaceae | Magnoliopsida |
| 35 | Spermacoce | glabra | Smooth False Buttonweed | Madder Family | Rubiaceae | Magnoliopsida |