Taxonomy
- Taxonomic Rank
- Variety
- Author
- (A.Heller) Rydb.
- Publication
- Bull. Torrey Bot. Club 33: 151 (1906)
Superior Taxa
- Kingdom
- Plantae
- Subkingdom
- Pteridobiotina
- Phylum
- Angiosperms
- Order
- Lamiales
- Family
- Plantaginaceae
- Genus
- Penstemon
- Species
- Penstemon angustifolius