Vitis riparia Michx.
Annotated by Frank Lomer, 2014.

British Columbia: Metro Vancouver, Delta, River Road, 700 m due southwest of Alex Fraser Bridge. Elev. 6 m
49.153056° N, 122.950167° W,
Climbing up large Populus trichocarpa at roadside, on the vegetated rivershore, scrambling over Rubus armeniacus, Cornus stolonifera. Vine, 6 m up the tree; fruit small, 1 cm, dark bluish purple with strong bloom, up to 100+ grapes per cluster, many clusters; 90% of clusters ripe, fruit juicy and pleasantly tart; vine visible on Google Earth Street View, Sept 2011; appears to be spontaneous and not likely planted at this site, though a few old houses remain along the river here.

Frank Lomer 8973, 2014 Sep 03
UBC, Accession: V242184