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Paxton, J., Magazine of botany and register of flowering plants [J. Paxton] (1834-1849)
Paxton’s Mag. Bot.

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vol. 6 (1839)

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p. 171 (1839)

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name cited:
Penstemon speciosus Douglas
name recognized:
Penstemon speciosus Douglas

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family: Scrophulariaceae
subfamily: Antirrhinoideae
tribe: Cheloneae

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epithet: speciosus,-a,-um

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Illustration contributed by:
Pennsylvania Horticultural Society, U.S.A.

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link to this page:
https://www.plantillustrations.org/illustration.php?id_illustration=189141

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