(Penstemon) These are hardy and tender perennials from North America. They form clumps, 2 to 3 feet tall and produce mostly basal leaves, 2 to 3 inches long. Their flowers grow in loose spikes resembling a snapdragon. They are pouched and up to 2 inches across. They come in most colors and often have a contrasting throat and veins. Picking off the ...
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any plant belonging to the genus Penstemon, of the figwort family.
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https://www.infoplease.com/dictionary/beardtongue
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