A little help here would be appreciated.

Judging by the smell of the following vine I’ve photographed, which climbs up the corner of my house, this is some kind of jasmine. It’s a pretty unmistakable fragrance.

However, though a few Internet searches have led me to believe this is some kind of star jasmine, there is one difference I just can’t overlook. Star jasmine flowers have five petals, while the one I photographed only has four.

In fact, I can’t find any four-petal jasmine flowers online. But, trust me, these little white flowers smell like jasmine.

So, if you happen to be, or know, a flower expert, I could use your help.

What is this?

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