Aristolochia labiata

Aristolochia labiata Willd. Mémoires de la Société Impériale des Naturalistes de Moscou 2: 101-102, t. 6. 1809.

Curtis's botanical magazine, Volume 90

This is a very fine species of Aristolochia, evidently belonging to the same natural group or section as the Aristolochia arborea, Linden, figured at Tab. 5295 of this work; derived, too, from the same country, New Granada, and introduced into Europe by the same distinguished horticulturist, Mr. Linden, through Mr. Triana, who detected it on the Magdalena, between Honda and Magdalena. As a species, however, it is totally distinct from the one just mentioned, not only in the foliage, but in the organization and internal structure of the flower. The singular blossoms are produced in our stove in September.