Jim, I will be very surprised if this plant is anything other than Parthenocissus although it would be far more interesting if someone can prove otherwise. I also noticed the lack of leaf serration but the leaflet margins are scalloped at about the same frequency as normal serrations on Parthenocissus leaves. Low light conditions are known to favor more entire leaf margins over serrated leaves in some species. The open growth on the Juniper and appearance of the Vinca minor underneath suggest that light may be limited at this location. We know that this is a property where the owner is content with a really boring Juniper underplanted with Vinca minor right along the sidewalk, maybe even near the front yard where the brick sidewalk meets a paved driveway or patio, suggesting that we don't have to look to exotic or unusual possibilities for identification of plants growing here. As you know, Parthenocissus is really common back East and seeds could easily have been deposited here by birds, especially under a Juniper. Even the general healthy appearance of this plant suggests Parthenocissus which always does well if water is available. I would also not completely rule out P. tricuspidata although I know its juvenile phase normally has three leaflets per leaf. The trident shaped leaves on those runners look like they could be P. tricuspidata. Someone here must recognize this plant. Nathan At 02:06 PM 7/13/2015, you wrote: >Thanks, Nathan.I agree that Parthenocissus >quinquefolia is a very good guess: I've been >trying to make it a Virginia creeper variant >since I first saw it. I've searched some >century-old books for information about Virginia >creeper cultivars without luck. I've made up >names (Parthenocissus quinquefolia truncata, P. >quinquefolia obtusifolia and others) to search >the literature - but so far no luck. And note >that the mystery plant does not have serrated >edges to the leaves. Please keep trying. Jim >McKenneyMontgomery County, Maryland, USA, USDA >zone >7 >_______________________________________________ >pbs mailing list pbs@lists.ibiblio.org >http://pacificbulbsociety.org/list.php http://pacificbulbsociety.org/pbswiki/