Belgique horticole, journal des jardins et des vergers (1851-1885)
Belgique Hort.
vol. 1 (1851)
t.
26
f. 2
name cited:
Penstemon azureus Benth.
name recognized:
Penstemon azureus Benth.
family: Scrophulariaceae
subfamily: Antirrhinoideae
tribe: Cheloneae
epithet cited:
azureus,-a,-um
epithet recognized:
heterophyllus,-a,-um
Illustration contributed by:
Smithsonian Institute, Washington, D.C., U.S.A.
link to this page:
https://www.plantillustrations.org/illustration.php?id_illustration=204723
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synonyms:
