Paxton, J., Lindley, J., Paxton’s flower garden [updated entry] (1850-1853)
Paxton’s Fl. Gard.
vol. 2 (1853)
t.
64
(1853)
name cited:
Penstemon azureus Benth.
name recognized:
Penstemon azureus Benth.
drawing:
L. Constans
family: Scrophulariaceae
subfamily: Antirrhinoideae
tribe: Cheloneae
epithet cited:
azureus,-a,-um
epithet recognized:
heterophyllus,-a,-um
Illustration contributed by:
Missouri Botanical Garden, St. Louis, U.S.A.
link to this page:
https://www.plantillustrations.org/illustration.php?id_illustration=51855
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synonyms:
