Rubiaceae

Diodia

virginiana (Large Buttonweed)

Galium

aparine (Cleavers)

asprellum (Rough Bedstraw)

boreale (Northern Bedstraw)

circaezans (White Wild Licorice)

lanceolatum (Yellow Wild Licorice)

mollugo (Wild Madder)

triflorum (Fragrant Bedstraw)

verum (Yellow Bedstraw)

Houstonia

caerulea (Bluets)

longifolia (Long-leaved Bluets)

purpurea (Large Houstonia)

serpyllifolia (Thyme-leaved Bluets)

Mitchella

repens (Partridgeberry)

Sherardia

arvensis (Blue Field Madder)