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| Kingdom Plantae |
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Keckiella breviflora var. glabrisepala (D.D. Keck) N.H. Holmgren – not accepted
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Penstemon ambiguus var. laevissimus (D.D. Keck) N.H. Holmgren – accepted – pink plains beardtongue, gilia penstemon, pink plains penstemon
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Penstemon angustifolius var. venosus (D.D. Keck) N.H. Holmgren – accepted – broadbeard beardtongue, broadbeard penstemon
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Penstemon crandallii var. atractus (D.D. Keck) N.H. Holmgren – not accepted
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Penstemon crandallii var. atratus (D.D. Keck) N.H. Holmgren – not accepted
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Penstemon fruticiformis var. amargosae (D.D. Keck) N.H. Holmgren – accepted – Death Valley beardtongue
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Penstemon heterodoxus var. shastensis (D.D. Keck) N.H. Holmgren – accepted – Shasta beardtongue
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Penstemon marcusii (D.D. Keck) N.H. Holmgren – accepted – Marcus' beardtongue, Jones' beardtongue
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Penstemon palmeri var. eglandulosus (D.D. Keck) N.H. Holmgren – accepted – scented beardtongue, scented penstemon |
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