Specimen image

maybe Ipomoea obscura (L.) Sweet ?

Blinkworthia lycioides Choisy

Argyreia confusa (Prain) Raiz.

Ipomoea hederifolia L.

Argyreia pierreana Bois, vel aff.

Dinetus truncatus (Kurz) Staples

Dinetus racemosus (Roxb.) Sweet

Ipomoea hederifolia L.

Pollia hasskarlii R.S. Rao

Argyreia rubicunda Choisy

Merremia vitifolia (Burm. f.) Hallier f.

Argyreia sp.
near A. wallichii/ A. pierreana