What is the best way to identify the Birdwing vines?
The leaves have a sandpapery texture which alternate along the vines stem. The petiole, which joins the leaf to the stem of the vine, is about 1-3cm long and hook shaped. The petiole also extends ¾ around the stem and is slightly ridged. The bark has a distinct cork-like appearance. Stems on mature vines are ovular shaped. They also have very unique flowers that are easily recognisable. On most leaves the base vein runs more than half way down the length of leaf.