I don't think the two lobed leaves and the arrangement on the centre stalk are significant, just an aberration imo. It certainly looks like a Honeysuckle or another shrub with opposite foliage arrangement such as Kolkwitzia. Honeysuckle would be most likely given its propensity to seed around.

boy its well grown ...

there are two types of H ...

the slightly invasive shrub.. that is of little use.. but to seed around some more ...

and the high quality H vines ... which are to die for ...

i would get one.. and destroy the other ..

i cant recall.. but are you the seed collector ...???

ken

Yes, I am the seed collector (unable to break the habit). Thanks for the info.

Ken, not all shrub honeysuckles are weedy, invasive species. :-) I wouldn't be without Lonicera nitida or L. pileata in the garden - excellent and versatile broadleaved evergreen shrubs. Or my latest favorite, the groundcovering Lonicera crassifolia.

But none of these are the plant in question........and I have no guesses beyond what has already been suggested ;-)