I found this growing from the base of my lonicera involucrata (twinberry honeysuckle) in Portland, OR. I have no idea what it is. Each stem is about five feet long. https://goo.gl/photos/LMNRF1YFy2PuqjfQA https://goo.gl/photos/VcJurACxDJANrtBKA
Why don't you suspect they are part of the Lonicera involucrata? Leaves look similar; opposite arrangement, too.
The leaves are perhaps 10 times the size of the other leaves on the shrub, but when I went out to look at it again I did begin to think it is part of the lonicera and that perhaps being in the shade made them grow that large. Thank you for responding. I feel silly having asked.
Well, get over that! It gave us something interesting to do. :) Next time, please post the photos here so they show up as photos. See Attach photos and files.
No need to feel silly! The 10x context would have made me suggest that it is the same plant, with some vigorous new shoots. It can happen because plants are to some extent "plastic" in terms of how they develop physically. I once collected a Manitoba maple leaf (if you are familiar with those relatively small leaves) that was the size of a bigleaf maple--same thing, though, on a young shoot.