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Early Blue Violet · Viola adunca
Description: This lovely moist meadow perennial (3-5") has heart-shaped leaves and dark blue/purple flowers from spring to midsummer. It re-seeds, but not aggressively. Viola adunca is the sole source of food for the endangered Oregon silverspot butterfly larvae. For more information on this important native, see our special article about the Oregon silverspot butterfly project . Sun/part shade, moderate-regular water.