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Taxonomy
- Taxonomic Rank
- Species
- Author
- Nutt. ex Pursh
- Publication
- Fl. Amer. Sept. 2: 738 (1813)
Superior Taxa
- Kingdom
- Plantae
- Subkingdom
- Pteridobiotina
- Phylum
- Angiosperms
- Order
- Lamiales
- Family
- Plantaginaceae
- Genus
- Penstemon
Inferior Taxa
Penstemon angustifolius var. angustifolius Penstemon angustifolius var. caudatus Penstemon angustifolius var. dulcis Penstemon angustifolius var. venosus Penstemon angustifolius var. vernalensis