ˈsiŋgəlˌterē- noun
Etymology: singletary probably from single (I) + -tary (as in solitary ); from its being an escape
: a weak-stemmed and usually decumbent winter annual legume ( Lathyrus hirsutus ) native to the Mediterranean region but long established as an escape in the southern United States and more recently cultivated as a cover and pasture crop — called also Caley pea, rough pea, wild winterpea