Hi -
Someone in Harpers Ferry has a vine growing on her property that she asked
me about. The leaves looked to me like those of Cynanchum laeve. I
didn't see any sign of flowers. What I'm wondering is whether anyone
knows of other opposite-leaved vines with a similar leaf that might be
another possibility ? The WV flora does say it's found along the
Shenandoah River in Jefferson County. (She's way up on the hill.)
There's an image of a piece of the vine at:
http://www.potomacaudubon.org/wbc/janetsvine.jpg
--Kathy