Penstemon canescens

Familia: Plantaginaceae
Tribus: Cheloneae
Genus: Penstemon
Subgenus: P. subg. Penstemon
Sectio: P. sect. Penstemon
Subsectio: P. subsect. Penstemon
Species:

Penstemon canescens (Britton) Britton, Mem. Torrey Bot. Club 5: 291 (1894).

• Homotypic
  • Penstemon canescens subsp. typicus Pennell in Monogr. Acad. Nat. Sci. Philadelphia 1: 221 (1935), not validly publ.
• Heterotypic
  • Penstemon brittanorum Pennell ex Peattie in J. Elisha Mitchell Sci. Soc. 45: 276 (1930), nom. subnud.
  • Penstemon brittoniorum Pennell in J.K.Small, Man. S.E. Fl.: 1204 (1933)
  • Penstemon canescens f. brittoniorum (Pennell) Fernald in Rhodora 51: 84 (1949)
  • Penstemon canescens subsp. brittoniorum (Pennell) Pennell in Monogr. Acad. Nat. Sci. Philadelphia 1: 222 (1935)
  • Penstemon canescens f. villicaulis Fernald in Rhodora 51: 83 (1949)

Britton, 1894. Mem. Torrey Bot. Club 5: 291 (1894)

• Flora of North America Editorial Committee (2019). Flora of North America North of Mexico 17: 1-737. Oxford University Press, New York, Oxford.

• International Plant Names Index. 2017. Penstemon canescens. Published online. Accessed: Oct. 29 2017. Reference page.
• Govaerts, R. et al. 2017. Penstemon canescens in Kew Science Plants of the World Online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2017 Oct. 29. Reference page. 
• Tropicos.org 29201281. 29. Missouri Botanical Garden. Published online. Accessed: Oct. 2017 29201281. Reference page.
• USDA, ARS, Germplasm Resources Information Network. Penstemon canescens in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 09-Oct-10.

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