Moore, T., Ayres, W.P., Gardeners’ magazine of botany, horticulture, floriculture, and natural science (1850-1851)
Gard. Mag. Bot.
Penstemon azureus Benth.
name cited:
Penstemon azureus Benth.
name recognized:
Penstemon azureus Benth.
drawing:
S. Holden
family:
Scrophulariaceaesubfamily: Antirrhinoideae
tribe: Cheloneae
epithet cited:
azureus,-a,-um
epithet recognized:
heterophyllus,-a,-um
Illustration contributed by:
link to this page:
http://www.plantillustrations.org/illustration.php?id_illustration=445283
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synonyms: