| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Fabaceae | Desmodium ×humifusum | Ground-spreading Tick-trefoil | Dry, sandy soils. | MA (NS?) south to MD and DC (and possibly VA). | |
| Fabaceae | Desmodium canadense | Showy Tick-trefoil, Canadian Tick-trefoil | Marl marshes, Thuja swamps, springs, seeps, hay meadows, streambanks, prairies, usually associated with calcareous substrates. | QC and NS west to AB, south to n. VA, sw. VA, c. WV, MO, and OK. Small (1933) reports this species for NC; no documentation has been seen. |  |
| Fabaceae | Desmodium canescens | Hoary Tick-trefoil | Fields, woodland borders, disturbed areas. | MA west to WI and NE, south to n. peninsular FL and TX. |  |
| Fabaceae | Desmodium ciliare | Fields, woodland borders, disturbed areas. | MA west to IN, MO, and se. KS, south to s. FL and TX; also in Cuba. |  | |
| Fabaceae | Desmodium cuspidatum | Large-bracted Tick-trefoil | Fields, woodlands, woodland borders, disturbed areas. | VT and MA west to MN, south to FL Panhandle and e. TX. |  |
| Fabaceae | Desmodium fernaldii | Fernald's Tick-trefoil | Longleaf pine sandhills and dry flatwoods, other dry sandy habitats, basic mesic forest, woodland borders. | E. MD south to s. SC (and maybe e. GA and n. FL); Isely (1998) states that reports from the Gulf Coast are based on "glabrate forms of D. glabellum", and also suggests that D. fernaldii is only weakly differentiated from D. glabellum. |  |
| Fabaceae | Desmodium floridanum | Florida Tick-trefoil | Longleaf pine sandhills, other dry sandy habitats. | Se. SC south to s. FL. |  |
| Fabaceae | Desmodium glabellum | Tall Tick-trefoil | Fields, woodland borders, disturbed areas. | ME west to WI and NE, south to n. peninsular FL and TX. |  |
| Fabaceae | Desmodium illinoense | Illinois Tick-trefoil | Prairies, roadsides. | OH, s. MI, s. WI, s. MN, se. SD, and c. NE south to s. OH, s. IL, se. MO, n. AR, s. OK, and n. TX. |  |
| Fabaceae | Desmodium incanum | Zarzabacoa Tick-trefoil, Zarzabacoa común | Lawns, disturbed areas; presumably introduced or adventive from tropical America. | A pantropical weedy species. Becoming common in s. AL (Dauphin Island (Barger et al. 2012). |  |
| Fabaceae | Desmodium laevigatum | Smooth Tick-trefoil | Dry oak and pine forests, fields, woodland borders, disturbed areas. | S. NY west to IN and MO, south to n. FL, Panhandle FL, and TX. |  |
| Fabaceae | Desmodium lineatum | Matted Tick-trefoil | Longleaf pine sandhills and other dry forests and woodlands. | Se. MD south to n. peninsular FL, west to TX, rarely inland. |  |
| Fabaceae | Desmodium marilandicum | Maryland Tick-trefoil | Fields, woodland borders, disturbed areas. | MA west to MI and MO, south to n. peninsular FL and TX. |  |
| Fabaceae | Desmodium nuttallii | Nuttall’s Tick-trefoil | Fields, woodland borders, disturbed areas. | NY west to IN, south to n. peninsular FL, FL Panhandle, AL, and AR. |  |
| Fabaceae | Desmodium obtusum | Stiff Tick-trefoil | Longleaf pine sandhills and dry pine flatwoods, other dry pine woodlands, fields, woodland borders, disturbed areas. | MA west to s. MI, south to Panhandle FL and TX. |  |
| Fabaceae | Desmodium ochroleucum | White Tick-trefoil, Creamflower Tick-trefoil | Dry woodlands and barrens, especially over calcareous substrates. | NJ, DE, and MD south to sc. and sw. NC, GA, TN, AL, Panhandle FL, MS, and MO. |  |
| Fabaceae | Desmodium paniculatum var. epetiolatum | Pine savannas and pine flatwoods, bogs. | Se. VA south to se. NC or e. SC. |  | |
| Fabaceae | Desmodium paniculatum var. paniculatum | Panicled Tick-trefoil | Fields, woodland borders, disturbed areas. | S. ME west to s. ON, MI, and NE, south to s. FL and TX. |  |
| Fabaceae | Desmodium perplexum | Perplexing Tick-trefoil | Fields, woodland borders, hammocks, disturbed areas. | ME west to WI, south to FL and TX. |  |
| Fabaceae | Desmodium psilophyllum | Wright's Tick-trefoil | Stream banks and rocky slopes. | C. TX, w. TX, and s. AZ south to s. Mexico. | |
| Fabaceae | Desmodium rotundifolium | Roundleaf Tick-trefoil | Dry forests and woodlands. | VT and MA west to s. MI, south to ne. FL, Panhandle FL, LA, and MO. |  |
| Fabaceae | Desmodium scorpiurus | Scorpion Tick-trefoil, Samoan-clover | Lawns, disturbed areas. | Native of the New World tropics. | |
| Fabaceae | Desmodium sessilifolium | Sessile-leaf Tick-trefoil | Dry woodlands. | RI west to s. MI and KS, south to NC, Panhandle FL, MS, and TX. |  |
| Fabaceae | Desmodium strictum | Pineland Tick-trefoil, Pinebarren Tick-trefoil | Longleaf pine sandhills, other dry woodlands. | S. NJ south to s. FL, west to w. LA and ne. TX. |  |
| Fabaceae | Desmodium tenuifolium | Slimleaf Tick-trefoil | Pine savannas, wet pine flatwoods. | Se. VA south to c. peninsular FL, west to w. LA. |  |
| Fabaceae | Desmodium tortuosum | Fields, woodland borders, disturbed areas. | E. NC south to s. FL, west to AR and TX; Mexico, Central America, n. South America, West Indies; perhaps only introduced in the more eastern parts of the southeastern United States. |  | |
| Fabaceae | Desmodium tweedyi | Tweedy's Tick-trefoil | Thickets in limestone areas. | OK south to sc. TX. | |
| Fabaceae | Desmodium viridiflorum | Velvety Tick-trefoil | Fields, woodland borders, disturbed areas. | NJ and DE south to c. peninsular FL, west to TX, and inland to w. VA, w. NC, n. TN, and AR. |  |
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