And now for something completely different... a shrubby foxglove that looks like a penstemon. D. obscura had me fooled when I first saw it in Denver, Colorado. The narrow, linear green leaves adorning the 20" tall x 20" wide clump had penstemon written all over them. The clump was topped with stalks of rusty-brown penstemon-like flowers that were just begging to be photographed. If you have a sunny well-drained site for a really cool, fool-your-neighbors plant, you must have a Digitalis obscura... Cool!