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Calico penstemon (aka, long-sepaled penstemon) is a typical penstemon/beardtongue — 1-3' tall with an unbranched stem and a panicle of flowers at the apex of the stem. Flowers are about 1" long, with a calyx with five long (5-12 mm), narrow (1-2 mm) lobes, a tubular corolla with two upper lobes and three lower lobes on the aperture, and four stamens and a single style, all enclosed by the corolla. The corolla's exterior is light purple or light violet and covered in fine hairs; the interior of the corolla is white and smooth, without ridges. The lobes on the lower lip of the corolla do not protrude beyond the lobes of the upper lip. Calico penstemon is fairly rare in Jackson Park.

Penstemon

Penstemon calycosus

calico penstemon [Blooms: Jun-Jul]