External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:1092932-2
- Species Name
- Penstemon digitalis Nutt. ex Sims, Bot. Mag. 52: t. 2587 (1825).
- Publication
- Flora of the Southern United States; Containing Abridged Descriptions of the Flowering Plants and Ferns of Tennessee, North and South Carolina, Georgia, Alabama, Mississippi and Florida: Arranged According to the Natural System. New York
- Collation
- 290
- Date of Publication
- 14 Aug 1860
- Family as entered in IPNI
- Scrophulariaceae