The keys do not agree. This plant (A. eximia) probably is a hybrid with Aquilegia formosa. A 2' perennial, with red-yellow flowers and green-gray foliage, Serpentine Columbine flowers from May through August. Native to the coast ranges, it grows best in partial shade inland, and tolerates full sun near the coast. This columbine grows near moisture, such as a seepage spot, and is not very drought tolerant. Tolerant of serpentine
soil, but will also do well on clay soil, it is very showy, equal or better than A. formosa or A. shockleyi. The columbines attract hummingbirds, and are deer proof in many areas. The leaves are coarser and appear duller than A. formosa or A. shockleyi (formosa).
Aquilegia eximia tolerates alkaline soil, clay, serpentine, no drainage and seasonal flooding.
Aquilegia eximia is great for a bird garden.
Foliage of Aquilegia eximia has color reddish-green and is stressdeciduous.
Flower of Aquilegia eximia has color red.
Communities for Aquilegia eximia:Chaparral, Mixed-evergreen Forest and Central Oak Woodland.