This fine species has brilliant red flowers that are especially large — in this instance more than 4″ (10 cm) long. Some cultivars have more distinctly violet-colored stamens and pistils.

An antique print from 1848 can be seen here, and shows this violet shading.

Additional photos in a slideshow can be seen by clicking one of the links below:

• Another cluster of flowers growing at the RBGE, but apparently a different collection; the stamens are distinctly violet-colored, and the markings on the lobes are different
• Another, different, cultivar, growing at a botanical garden in Japan, with distinctly violet stamens and pistils.