Scrophulariaceae (Magnoliophyta)
Penstemon cyananthus subsp. longiflorus Pennell
Contr. U. S. Natl. Herb. 20: 353. 1920
Specimen 1: Isotype -- Collector unspecified 376
Specimen 2: Holotype -- E. Palmer 376
Specimen 3: Isotype -- E. Palmer 376, verif. J. A. Alexander, 2013
View all records of Penstemon cyananthus subsp. longiflorus Pennell