Taxonomy
- Taxonomic Rank
- Variety
- Author
- (Pennell) Cronquist
- Publication
- Vasc. Pl. Pacif. N.W. 4: 373 (1959)
Superior Taxa
- Kingdom
- Plantae
- Subkingdom
- Pteridobiotina
- Phylum
- Angiosperms
- Order
- Lamiales
- Family
- Plantaginaceae
- Genus
- Penstemon
- Species
- Penstemon attenuatus