[friendsofedgewood.org/] Etymology: Laythrus (LA-thi-rus) from the Greek lathyros, pea vestitus (ves-TIE-tus) from the Latin for covered or clothed, referring to hairs (link added by Mary Ann Machi)

[Wikipedia] Range, Subspecies: Lathyrus vestitus is a species of wild pea known by the common name Pacific pea. It is native to western North America, where it is mostly found in the forests, woodlands, and chaparral of California. The ranges of some subspecies extend into Oregon and Baja California. Subspecies Lathyrus vestitus is often discussed as comprising several varieties. These are: Lathyrus vestitus var. alefeldii Lathyrus vestitus var. ochropetalus Lathyrus vestitus var. vestitus (link added by Mary Ann Machi)