Lehmann, J.G.C., Icones et descriptiones novarum et minus cognitarum stirpium (1821-1824)
Icon. Descr. Nov. Strip.

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vol. 4 (1823)

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t. 36

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name cited:
Echium trigonum Thunb.
name recognized:
Echium trigonum Thunb.

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family: Boraginaceae
subfamily: Boraginioidae
tribe: Echieae

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epithet: trigonus,-a,-um

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Illustration contributed by:

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link to this page:
https://www.plantillustrations.org/illustration.php?id_illustration=471194

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synonyms: