Marcus' Beardtongue (Penstemon marcusii)
Description
Penstemon marcusii is a grobladsv-xtart first described by Karl Keck , and got its current name of Noel Herman Holmgren . Penstemon marcusii included in the genus penstemoner and family Plantain . No subspecies are listed in the Catalog of Life .
Taxonomic tree
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Domain: Eukarya
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Kingdom: Plantae
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Phylum: Magnoliophyta
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Class: Magnoliopsida
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Order: Lamiales
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Family: Plantaginaceae
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Genus: Penstemon
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