Penstemon laetus var. filiformis (D.D.Keck) McMinn
, Man. Calif. Shrubs 517 (1939).- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:187574-2
- Species Name
- Penstemon laetus A.Gray, Proc. Boston Soc. Nat. Hist. 7: 147 (1859).
- Publication
- Illustrated Manual of California Shrubs. Berkeley, CA
- Collation
- 517
- Family as entered in IPNI
- Scrophulariaceae