| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Fabaceae | Lathyrus aphaca | Yellow Vetchling, Yellow Pea | Disturbed areas. | Native of Eurasia. Scattered in occurrence in the Southeast, including AL, TN, and KY (Kartesz 1999). |  |
| Fabaceae | Lathyrus decaphyllus var. incanus | Hoary Vetchling | Prairies. | NE south to sc. OK and CO. | |
| Fabaceae | Lathyrus hirsutus | Caley Pea, Singletary Pea, Rough Pea | Roadsides, fields, disturbed areas. | Native of Europe. Reported for s. IN by Bill Thomas (pers.comm., 2022). |  |
| Fabaceae | Lathyrus japonicus var. maritimus | Atlantic Beach Pea | Ocean beaches. | The species is circumboreal, south in eastern North America to NJ (or NC?) and the shores of the Great Lakes. Reported from ocean beaches in Dare County (NC), but without documentation. |  |
| Fabaceae | Lathyrus japonicus var. pellitus | Hairy Beach Pea | Ocean beaches. | Northeastern North America, along the coast from NL south to NJ, and also around the Great Lakes. | |
| Fabaceae | Lathyrus latifolius | Everlasting Pea, Perennial Sweet Pea | Roadsides, fencerows, disturbed areas. | Native of Europe. |  |
| Fabaceae | Lathyrus ochroleucus | Cream Vetchling, Pale Vetchling | Dry forests and thickets. | QC to AK, south to n. NJ, PA, w. KY, s. IL, IA, NE, ID, and WA. |  |
| Fabaceae | Lathyrus odoratus | Sweet Pea | Cultivated, and occasionally persisting. | Native of s. Europe. |  |
| Fabaceae | Lathyrus palustris | Marsh Pea, Marsh Vetchling | Tidal freshwater marshes, calcareous fens, bottomland forests, other marshes, streambanks. | Circumboreal, ranging in North America south to DE, VA, ne. NC, ec. GA, OH, IN, MO, CO, and CA. |  |
| Fabaceae | Lathyrus pratensis | Meadow Pea, Yellow Vetchling | Disturbed areas. | Native of Eurasia. |  |
| Fabaceae | Lathyrus pusillus | Tiny Pea | Open areas in bottomlands, disturbed areas. | E. VA, MO and KS, south to FL Panhandle and TX; disjunct in s. South America. The more eastern populations are scattered and curious. |  |
| Fabaceae | Lathyrus sylvestris | Perennial Pea | Cultivated, and occasionally persisting, and more rarely naturalizing. | Native of Europe. Reported as naturalizing in se. TN along a roadcut (Hart, Shaw, & Estes 2012). |  |
| Fabaceae | Lathyrus tuberosus | Tuberous Vetchling, Earthnut Pea | Disturbed areas. | Native of Europe. Introduced in e. TN (Chester, Wofford, & Kral 1997), WV (Strausbaugh & Core 1978), and KY. |  |
| Fabaceae | Lathyrus venosus var. arkansanus | Arkansas Forest Pea, Bush Vetch | Dry to mesic slope and bottomlands forests and woodlands, rocky bars and outcrops along rivers, somewhat (but not at all strictly) associated with base-rich soils. | MO and OK south to w. LA and e. TX. | |
| Fabaceae | Lathyrus venosus var. intonsus | Hairy Forest Pea | Dry to mesic slope and bottomlands forests and woodlands, rocky bars and outcrops along rivers, somewhat (but not at all strictly) associated with base-rich soils. | W. NY, s. ON, and MN south to IN and ec. MO. | |
| Fabaceae | Lathyrus venosus var. venosus | Smooth Forest Pea | Dry to mesic slope and bottomlands forests and woodlands, rocky bars and outcrops along rivers, somewhat (but not at all strictly) associated with base-rich soils. | Nw. NJ and PA, south in the Appalachians, Piedmont, and (rarely Coastal Plain) to GA and AL. |  |
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