AusBonsai

A few of these have recently popped up in one small area of my garden, so it looks like they may have been carried in by bird poop. I have never seen them before, so I dug one up and potted it. It appears to be a climber or creeper of some sort with tendrils to cling to things. It is already growing what appears to be small insignificant bell shaped flowers. Given these facts I wouldn't be surprised if it was a weed or pest plant of some kind. Does anyone know what plant this is?

the flower looks like a passion fruit flower of some type, i'll have a quick google

passiflora suberosa

Thank you Max, Spot on! It is an invasive non-native pest plant, so I know what I'll do with any more that pop up.
Cheers, Frank.