Synonyms for Potato Vine (same or very similar meaning)
WordNet sense 1 (vine of Costa Rica sparsely armed with hooklike spines and having large lilac-blue flowers):
giant potato creeper, Solanum wendlandiiWordNet sense 2 (copiously branched vine of Brazil having deciduous leaves and white flowers tinged with blue):
Solanum jasmoidesFrom the ODE community, based on WordNetadd/edit