| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Rubiaceae | Galium tinctorium | Non-standard. Added for North Carolina Botanical Garden planted species. | |||
| Rubiaceae | Galium tinctorium var. floridanum | Florida Three-lobed Bedstraw, Stiff Marsh Bedstraw | Swamps, marshes, and ditches. | MA south to FL, west to e. TX, mostly on the Coastal Plain, but extending inland to w. VA, w. NC, se. KY, s. IL, and se. MO. |  |
| Rubiaceae | Galium tinctorium var. tinctorium | Southern Three-lobed Bedstraw, Stiff Marsh Bedstraw | Swamps, marshes, and ditches. | NL (Newfoundland) west to MN and NE, south to SC, n. GA, KY, and ne. MO. |  |