Autorité : Autorité généralement citée comme "Willd. ex Roem. & Schult. 1820". Tropicos note: "authorship is according to ICN Art. 46.3 (Ex. 12).[Note: treated as "Willd. ex Roem." by several authors but protologue ascribes name and description to Willd., thus "in". Authorship of Syst. Veg. 15bis has been ascribed to "Roem. & Schult." by some authors, but the ICBN was revised recently and now removes Roem. from authorhship of this work - CMT 2016]".

Date de publication : in J.A. Schultes ["Schult."], Syst. Veg. (ed. 15 bis), 6: LXI, 641. 1820 [08-12/1820, fide TL-2, 9408].

Type : Trisecus frangulifolius Willd. 1820 [≡  Gouania frangulifolia (Willd.) Radlk. 1878] (Venezuela, Orénoque).

Validité : Description générico-spécifique spartiate, mais validante.