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Mullein foxglove has an odd-looking but very attractive flower that always makes me think of Burt Lahr's Cowardly Lion in the (1939) Wizard of Oz. Individual flowers are about 1/2-3/4" long and across with a basal green calyx decorated with five blunt teeth. The bright yellow, tubular corolla terminates in five spreading lobes; the upper two lobes are reflected backwards, while the lower three lobes (presumably) function as a landing pad for pollinators (mostly bumblebees). From the front, the opening into the corolla is largely obscured by numerous fine yellow hairs that tend to hide the stamens (present in two distinct lengths) and the single style with a two-lobed stigma.
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Dasistoma

Dasistoma macrophylla

mullein foxglove [Blooms: Jul-Aug]

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I want to acknowledge the work of a friend and colleague, Dr. Fred Donner. We both share a passion for the flowers in Jackson Park. Fred's website (jacksonparkwildflowers.org) inspired me to build my own website and database; use and enjoy them both.

I am also pleased to thank my ninja web gurus and coders, Lindsey Young and Stefanie Engstrom. This site would not exist without their herculean labors.

Copyright 2026 © Michael LaBarbera

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