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Snapshots of the taxonomy

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As classified in WFO snapshot

December 2024

latest classification for this taxon

subspecies

Penstemon attenuatus subsp. hyacinthinus Pennell

This subspecies name was first published in Notul. Nat. Acad. Nat. Sci. Philadelphia 71: 8 (1941)  

This subspecies name has been reclassified since this snapshot. Its current preferred usage is a synonym .