Who knows this plant?

[petalouda]

Hi:

Any idea what plant this could be? It grows near Cali/Colombia. I’m not a botanist myself but a butterfly man and found some larvae of an endemic Papilio subspecies (Parides erythelion cauca) feeding on this vine.

Attachments:

[Aidan]

I have no idea as to species (there are around 500 of them!) but it would appear to be an Aristolochia.

[marcel]

Yes, it is an Aristolochia and the species is difficult by the sheer number but if I had to make a guess I would say A. grandiflora, a native of Central America and the Caribbean.

[petalouda]

Thanks. That's exactly what I need to know.