Perennials
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Penstemon heterophyllus ‘Blue Spring’ (Foothill Beardtongue)
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Penstemon pallidus (Pale Beardtongue)
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Penstemon parryi (Parry’s Beardtongue)
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Penstemon pinifolius ‘Mersea Yellow’ (Pineleaf Beardtongue)
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Penstemon smallii (Small’s Beardtongue)
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Penstemon strictus (Beardtongue)
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Penstemon superbus (Superb Beardtongue)
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Penstemon virgatus ‘Blue Buckle’ (Stiff Beardtongue)
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Penstemon whippleanus (Whipple’s Beardtongue)
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Penstemon x ‘Dark Towers’ (Beardtongue)
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Penstemon x ‘Midnight Masquerade’ (Beardtongue)
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Penstemon x mexicali ‘Sunburst Amethyst’ (Beardtongue)