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Snapshots of the taxonomy

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As classified in WFO snapshot

June 2024

Warning: older classification

subspecies

Penstemon secundiflorus subsp. lavendulus Pennell

This subspecies name was first published in Contr. U.S. Natl. Herb. 20: 358 (1920)  

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