Penstemon fruticosus subsp. scouleri (Lindl.) Pennell & D.D.Keck
, Ill. Fl. Pacific States 3: 765 (1951).
External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:187409-2
- Species Name
- Penstemon fruticosus (Pursh) Greene, Pittonia 2(11): 239 (1892).
- Publication
- Illustrated Flora of the Pacific States, An
- Collation
- 3: 765
- Family as entered in IPNI
- Scrophulariaceae