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Genus: Penstemon Life
> eukaryotes >
Archaeoplastida >
Chloroplastida
>
Charophyta > Streptophytina > Plantae (land plants)
> Tracheophyta (vascular plants) > Euphyllophyta > Lignophyta (woody plants)
> Spermatophyta (seed plants) > Angiospermae (flowering
plants) > Eudicotyledons > Core Eudicots > Asterids > Euasterid I > Order: Lamiales > Family: Plantaginaceae
Eleven species cultivated.
Species cultivated in southern Africa
List from
Glen (2002).
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Penstemon barbatus
Native to the USA.
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Penstemon cobaea
Native to the USA.
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Penstemon cordifolius
Native to California, USA.
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Penstemon digitalis
Native to the USA.
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Penstemon grandiflorus
Native to the USA.
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Penstemon hirsutus
Native to eastern USA and Canada.
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Penstemon laevigatus
Native to the USA.
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Penstemon pallidus
Native to eastern USA.
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Penstemon serrulatus
Native to north-western USA and
Canada.
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Penstemon speciosus
Native to western USA.
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Penstemon strictus
Native to USA.
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