The flowers are showy and somewhat gaudy. The Everlasting Pea can be distinguished from many other Wild Peas by its winged stems and compound leaves with only 2 leaflets. In this this regard, it is similar to Lathyrus odoratus (Sweet Pea) and Lathyrus hirsutus (Singleton Pea). These latter two species are annual or biennial in their growth habit, rather than perennial. Both the Sweet Pea and Singleton Pea have racemes with 1-3 flowers, while the Everlasting Pea has racemes with 4-10 flowers. The flowers of Sweet Pea are usually fragrant, while the flowers of Singleton Pea are about ½" across. The flowers of the Everlasting Pea are about ¾–1" across and they are never fragrant.