I'm doing taxonomy project and unsure what species is this plant. Based on research I've done, it's Asian pigeonwings or Clitoria ternatea to be exact. I just need confirmation of this plant to move onto next part of the project.
Having already said this plant is not Clitoria ternatea because the leaves are too large and pointed, if there's a yellow throat inside the flower, I'm pretty sure it's actually Thunbergia erecta, image here https://commons.m.wikimedia.org/wiki/File:Thunbergia_erecta_(3).JPG
There is an obvious waviness to the leaf edges in your image - the trouble is, because it's a cut stem, that waviness could have been down to drying out, but Thunbergia does have the same waviness to the leaf edges. It's a climbing perennial plant native to western Africa, belonging to the Acanthaceae family.