Everlasting Pea (Perennial Sweet Pea)
Strong-climbing, hairless perennial, often covering large areas. Stems broadly winged. Flowers in clustered inflorescences with up to 10 flowers, about 1 inch long, in the typical pea-flower configuration, with a large standard (upper petal); rose-purple, rose-pink or white; without any scent. Blooms May–September. Leaves alternate, their winged stems with lance-shaped stipules; leaves in sets of 2 leaflets, with tendrils emerging from between.