| lathyrus | (n) genus of climbing herbs of Old World and temperate North and South America: vetchling; wild pea, Syn. genus Lathyrus |
| beach pea | (n) wild pea of seashores of north temperate zone having tough roots and purple flowers and useful as a sand binder, Syn. sea pea, Lathyrus japonicus, Lathyrus maritimus |
| black pea | (n) perennial of Europe and North Africa; foliage turns black in drying, Syn. Lathyrus niger |
| broad-leaved everlasting pea | (n) perennial climber of central and southern Europe having purple or pink or white flowers; naturalized in North America, Syn. Lathyrus latifolius, perennial pea |
| caper spurge | (n) poisonous Old World spurge; adventive in America; seeds yield a purgative oil, Syn. myrtle spurge, mole plant, Euphorbia lathyris |
| common vetchling | (n) scrambling perennial Eurasian wild pea having yellowish flowers and compressed seed pods; cultivated for forage, Syn. meadow pea, Lathyrus pratensis, yellow vetchling |
| flat pea | (n) European perennial with mottled flowers of purple and pink; sometimes cultivated for fodder or as green manure, Syn. narrow-leaved everlasting pea, Lathyrus sylvestris |
| grass pea | (n) European annual grown for forage; seeds used for food in India and for stock elsewhere, Syn. Lathyrus sativus, Indian pea, khesari |
| grass vetch | (n) annual European vetch with red flowers, Syn. Lathyrus nissolia, grass vetchling |
| heath pea | (n) European herb bearing small tubers used for food and in Scotland to flavor whiskey, Syn. tuberous vetch, earth-nut pea, earthnut pea, Lathyrus tuberosus |
| marsh pea | (n) scrambling perennial of damp or marshy areas of Eurasia and North America with purplish flowers, Syn. Lathyrus palustris |
| pride of california | (n) shrubby California perennial having large pink or violet flowers; cultivated as an ornamental, Syn. Lathyrus splendens |
| singletary pea | (n) a weak-stemmed winter annual native to Mediterranean region for long established in southern United States; cultivated as a cover and pasture crop, Syn. wild winterpea, Caley pea, rough pea, Lathyrus hirsutus |
| spring vetchling | (n) bushy European perennial having nodding racemose violet-blue flowers, Syn. Lathyrus vernus, spring vetch |
| sweet pea | (n) climbing garden plant having fragrant pastel-colored flowers, Syn. sweetpea, Lathyrus odoratus |