Penstemon barbatus subsp. trichander (A.Gray) D.D.Keck J. Washington Acad. Sci. 29: 491 (1939)

Nomenclatural References

• literature : J. Wash. Acad. Sci. 29: 491. 1939 BHL link from IPNI metadata.
• person : Asa Gray (1810-1888) Based on occurrence of standard abbreviation 'A.Gray' in the authors string.
• person : David D. Keck (1903-1995) Based on occurrence of standard abbreviation 'D.D.Keck' in the authors string.
• database : IPNI record: 187202-2
• database : The Plant List version 1.0, record: tro-29201264
• database : The Plant List version 1.1, record: tro-29201264